which is the correct bond-line formula of compound whose condensed formula is ch3chclch2ch(ch3)ch2ch(ch3)2?
what is the hybridization state of the boron atom in b(ch2ch3)3?
which of the following is a valid lewis dot formula for the nitrite ion (no2-)?
how many primary carbons in this strucure?
chapters 7-9思维导图 （以图片形式上传，便于互评）
chapter 5 思维导图绘制
以下哪种假设不属于材料力学的基本假设（ ）。
等直空心圆截面杆受到轴向拉伸作用，材料的受力在线弹性范围内，则（ ）。
在掺杂后的半导体中，其导电能力的大小的说确的是 。
n型半导体是在本征半导体中加入下列 物质而形成的。
p型半导体是在本征半导体中加入下列 物质而形成的。
pn结具有单向导电性
pn结加正向电压时导通
pn结加反向电压时截止
要使普通二极管导通，下列说确的是 。
二极管也具有单向导电性
稳压二极管在电路中的接法，正确的说法是 。
稳压管工作在反向击穿状态
晶体三极管用于放大的条件，下列说确的是 。
晶体三极管的截止条件，下列说确的是 。
晶体三极管的饱和条件，下列说确的是 。
对于三极管的输入特性，下列说确的是 。
工作在放大区域的某三极管，当ib从20μa增大到40μa时，ic从1ma变为2ma则它的β值约为 。
npn型和pnp型晶体管的区别是 。
当晶体三极管的发射结和集电结都反偏时，则晶体三极管的集电极电流将
为了使三极管可靠地截止，电路必须满足
放大电路对其负载而言相当于信号源，因此我们可以将其等效为___________
对放大电路中的三极管进行测量，各极对地电压分别为ub=2.7v，ue=2v，uc=6v，则该管工作在 。
某单管共射放大电路在处于放大状态时，三个电极a、b、c对地的电位分别是ua=2.3v，ub=3v，uc=0v，则此三极管一定是
放大电路的通路包括___________和__________。
为了保证不失真放大，放大电路必须设置静态工作点。对npn管组成的基本共射放大电路，如果静态工作点太低，将会产生 失真，应调rb，使其 ，则ib ，这样可克服失真。
三极管的微变等效是指把be间等效成电阻_____________，ic等效成一个_______________
共射组态既有 放大作用，又有 放大作用。
分压式偏置电路能够调节静态工作点是因为发射极电阻——的存在
晶体管构成的三种放大电路中，没有电压放大作用但有电流放大作用的是
典型的多级放大电路有______、_______________、____三种耦合方式
)输出端的零漂电压电压主要来自放大器 静态电位的干扰变动，因此要抑制零漂，首先要抑制 的零漂。目前抑制零漂比较有效的方法是采用 。
集 成 运 算 放 大 器 是 ( ) 。
在输入量不变的情况下,若引入的是负反馈,则以下说确的是 。 a、输入电阻增大 b、输出量增大 c、净输入量增大 d、净输入量减小
一 个 由 理 想 运 算 放 大 器 组 成 的 同 相 比 例 运 算 电 路， 其 输 入 输 出 电 阻 是（ ）。
作为电压比较器时，集成运放工作在___________区
半波整流输出电压uo与变压器次级线圈端电压u2的关系式（）
桥式整流输出电压uo为变压器副边电压u2的（）倍
电容滤波是将电容（）在电路中
电感滤波是将电感（）在电路中
电容滤波电路中电容越大输出波形越（）
硅稳压管稳压电路中稳压管工作在（）
78系列三端稳压器输出（）电压
数字电路中的三极管工作在（ ）状态
数字信号是随着时间连续变化的信号
二进制[100011]2 转换成十进制数为（ ）
十进制12的十六进制数是（ ）
十进制10的8421bcd码是（）
15的8421bcd码是（）
只有两个条件都满足结果才为真的逻辑关系是（ ）
可以用逻辑表达式y=a b来表示的逻辑关系是（ ）
逻辑代数的基本定律a 0=（ ）
逻辑代数中a ab为（ ）
公式化简法就是运用上述的逻辑代数运算法则和定律把复杂的逻辑函数式化成简单的逻辑式（）
n个变量有2的n次方个最小项（）
一个多变量逻辑表达式，如果其中两个最小项中只有一个变量为互反变量，其余变量均相同，则把这两项称为相邻项（）
某一时刻的输出状态仅由该时刻电路的输入信号决定, 而与该电路在此输入信号之前所具有的状态无关的电路是（）
组合逻辑电路具有记忆功能
组合逻辑电路的设计是多样的（）
组合电路的设计是根据给定的逻辑功能要求，找出用最少的逻辑门来实现该逻辑功能的电路。
3个二进制代码（3位二进制数）有（）种不同的组合，可以表示（）个信号。
对于输入信号有8个的编码器，其输出信号是（）位
二进制译码器是将n个输入的不同组合译成2的n次方种电路状态，那么，3个输入有（）个输出
74ls138译码器输入输出为（）
半加运算不考虑从低位来的进位
全加器都是三个数相加，包括被加数、加数和低位来的进位
多位数值比较器的比较原则是先从高位比起，高位大的数值一定大
从多路数据中选择一路信号进行传输的电路，称为数据选择器
74ls153是4选1数据选择器
rs触发器当r=0，s=0时实现怎样的功能
当rs触发器，r=1、s=0时实现什么功能
当rs触发器，r=0、s=1时实现什么功能
jk触发器当j=0，k=0时，触发器的输出为
jk触发器当j=0,k=1时，触发器的输出状态是
jk触发器当j=1,k=0时，触发器的输出状态是
jk触发器当j=1,k=1时，触发器的输出状态是
d触发器输出状态总是与d的输入一致
jk触发器转换成t触发器的方法就是把jk两个端子连接在一起，输入一个信号t即可
计数器能达到的最大数为计数器的容量，它等于计数器所有位全为1时的数值，即n位二进制加法计数器，其容量为2n-1。
十进制计数器是在二进制计数器的基础上得到的，用4位二进制数来表示十进制数的每一位数，所以也称为二-十进制数。
利用集成计数器74ls161的复位端组成一个七进制计数器时，应该在输出状态为0111时使其复位
555集成定时器是一种模拟-数字混合式中规模集成电路，只要在外部配上适当的元器件，就可以方便地构成脉冲产生和整形电路，如施密特触发器、单稳态触发器、多谐振荡器等
555定时器构成施密特触发器可以进行波形的整形
555定时器构成单稳态触发器具有定时、延时的作用
555定时器构成多谐振荡器可以应用在报警电路
一个人站在有光滑转轴的转动平台上，双臂水平地举两个哑铃。在该人把哑铃水平收缩到胸前的过程中，人、哑铃与平台组成系统的______。
几个力同时作用在一个具有固定转轴的刚体上，如果这几个力的矢量和为零，则对该轴力矩的矢量和也一定为零。
皮带轮由静止开始做匀加速转动，角加速度大小为，当时，与轮心相距的一点的速度为_______。
合振动的振幅是______，初相角是______（长度单位：mm，时间单位：s）
横波传播时各质点不会随波前进，但纵波传播时各质点将随波前进。
已知弹性波的波速，波长和周期之间满足，因此通过提高波的频率会提高波速。
作简谐运动的小球，速度最大值为，振幅，则加速度的最大值为______.
在驻波中，相邻两段中的各点的振动________（同相/反相）。
请问《人面鱼纹彩陶盆》是哪种“文化”的彩陶？
请问《人物龙凤图》属于什么画？
请问《t型帛画》在哪里出土？
下列哪件作品不是顾恺之的画作？
《女史箴图》收藏于哪个博物馆？
下列哪个成语与张僧繇有关系？
下列哪个风格特点不是顾恺之所有？
《职贡图》的作者是？
“面短而艳”是哪位画家的特点？
在画中采用“凹凸晕染法”的画家是？
“笔迹劲力，如锥刀矣”形容的是哪位画家特点？
曹仲达的绘画特点？
下列哪位画家不属于“六朝三杰”？
隋代时期的画家是哪位？
展子虔的绘画作品是？
《江帆楼阁图》的作者是？
《五牛图》的作者是？
“外师造化，中得心源”是哪位画家的论点？
下列作品属于阎立本的有？
下列作品属于张萱的有？
下列作品属于吴道子的有？
下列画家属于人物画家的有？
下列画家属于“北宗山水”的有？
顾闳中是哪个画院的画家？
《韩熙载夜宴图》是一幅什么形制的画作？
《笔记法》是谁的著作？
董源山水画的皴法特点是？
《写生珍禽图》的作者是？
下列属于“南方山水画派”的画家有？
下列哪些朝代属于“五代十国”之中？
下面哪种动物在《写生珍禽图》中出现过？
下面哪位人物在《韩熙载夜宴图》中出现过？
下面山水画中属于立轴的是？
范宽山水画皴法的特点是？
提出“三远法”的画家是？
“论画以形似，见与儿童邻”是谁的绘画理念？
反映商朝末年伯夷、叔齐爱国气节的绘画作品是？
《瑞鹤图》中一共描绘了多少只仙鹤？
下列哪件作品是宋徽宗的绘画作品？
下列哪位画家属于“南宋四大家”之列？
下列哪些马是《五马图》中的马？
下列属于北宋徽宗时期的画家是？
“三远法”中的“三远”是哪些？
“书画同源”是哪位画家提出？
《鹊华秋色图》描绘的山水是哪个地方？
《富春山居图》是送给谁的画？
“元四家”之中哪位画家喜欢用“湿笔”？
倪瓒的山水画皴法特点是？
《富春山居图》之一的《剩山图卷》现收藏在哪个博物馆？
下列属于王蒙的皴法特点是？
下列名字中哪些是黄公望的字号？
下列哪些画是赵孟頫的作品？
《富春山居图》曾经被下列哪些收藏家收藏过？
戴进是哪里人？
“南北二宗”是谁提出来的？
《秋风纨扇图》是以哪位历史人物为题材绘画的？
《东庄图》是谁的作品？
《湘君湘夫人图》题材取自哪里？
董其昌所属的画派是？
下列画家属于“吴门画派”的有？
下列画作中属于唐寅的有？
并称“青藤白阳”的是哪两位画家？
下列画作属于仇英的有？
书法风格被称作“漆书”的清代画家为？
书法风格被称为“六分半书”的清代画家为？
将“没骨画”发扬光大的清代画家为？
郎世宁是哪个的人？
弘仁是哪个画派代表人物？
提出“一画论”的清代画家是哪位？
下列画家中属于“四僧”的是哪几位？
下列画家中属于“扬州八怪”的是？
下列画家中属于“海上画派”的是？
下列画家中属于“清初六家”的是？
我国第一幅纸本绘画为？
下列哪位人物没有出现在《步辇图》之中？
提出“以形写神”的画家是？
提出“南北宗论”的画家是？
《照夜白图》现存哪个博物馆？
《虢国夫人游春图》的作者是哪位唐代画家？
郎世宁是哪个的人？
《五马图》的表现手法是？
《韩熙载夜宴图》的作者是哪个时代的画家？
吴门画家中，由职业工匠出身而跻身文人之林的画家是？
下列作品属于顾恺之的有？
下列作品中属于青绿山水画的有？
下列哪些画家属于北方山水画派？
下列哪些画家属于“扬州八怪”之中？
下列作品中属于元代画家王蒙的有？
下列作品中属于宋代中的有？
下列作品中属于元代的有？
下列画家中属于“吴门画派”的有？
下列哪些绘画理论是赵孟頫提出的？
宋徽宗对艺术的贡献主要有？
任伯年是清代早期“海派”画家。
唐代画家李思训与其弟李昭道是青绿山水画之祖。
明代画家沈周是吴门四家之首。
黄筌是五代时期南唐画院宫廷画家，其绘画风格为“黄家富贵”。
《捣练图》为唐代画家张萱作品。
明代画家徐渭和清代画家朱耷都是大写意花鸟画家。
陈淳是吴门画派文徵明的学生。
成语“画龙点睛”的典故与东晋画家顾恺之有关。
陈洪绶是明代晚期宫廷画家，擅长画变形人物画。
《富春山居图》曾经被明代画家沈周所收藏。
宋徽宗的书法被后世称为_____________。
《女史箴图》为东晋画家___________的作品。
_______________为萧梁时期画家，擅长佛寺壁画，其所创佛教人物风格被称为“张家样”。
隋代画家展子虔的《______________》，开创了青绿山水的端绪。
唐代人物画家周昉，创造的“_______________”之体称为广为流传的佛教样式，被称为“周家样”。
在郭熙的绘画理论著作《_____________》中首次提出山水画的“三远法”。
画圣吴道子的《_____________》曾被徐悲鸿先生重金收藏。
明代浙派的创始人是________________。
《富春山居图》的作者是元代画家__________________。
“青藤白阳”中的“青藤”是指明代画家____________。
作画“贵有古意”论是元代画家_____________提出的。
五代董源巨然的山水画风格属于___________山水画派。
南宋画家李唐在其作品《万壑松风图》中使用了___________皴法。
《云山墨戏图》的作者是北宋画家米芾的儿子___________。
《溪山行旅图》的作者是北宋画家____________。
what are 6 types of brainstorming strategies taught in this week?
at what point in the writing process should we brainstorm?
what is the unifying theme in all forms of brainstorming?
why is brainstorming important?
outlining is ( ) in the writing process.
how is the major supporting idea different from the minor one?
among the following choices, which one can not be used as major supporting ideas?
among the following choices, which one can not be used as minor supporting ideas?
what are the three features of a thesis statement?
the parallel structure is the most important thing in outline.
an outline is thoughts, rather than a paragraph. so we can just write down ideas rather than sentences.
what is the structure of an outline? (write down its 4 components) (答案请用小写字母，无复数；答案间以分号隔开，且分号后需空一格写下一个答案。因为不清楚格式是否影响系统自动评分，故说明下)
what is the difference between the major and minor premises?
all fragile things are breakable things. some glasses are fragile things. therefore,
can you identify the logical fallacy in this claim? “my roommate said philosophy class is boring, and i felt the same too. all philosophy classes must be boring.”
can you identify the logical fallacy in this claim? “even though it’s only the first day, i can tell this is going to be a boring course”.
can you identify the logical fallacy in this claim? “we have a new math teacher. and my math turns out to be a disaster this semester. the new math teacher is responsible for my poor performance. ”
can you identify the logical fallacy in this claim? “xiao ming always cheats in exams. xiao ming is your friend. you always cheat in exams.”
can you identify the logical fallacy in this claim? “traffic jam can be solved by traffic control in the downtown area.”
can you identify the logical fallacy in this claim? “we shouldn’t allow a liar like zhao zhi to represent us in this competition."
which one is not one of the three appeals of an argument that aristotle postulated:
how to convert logical syllogi into written argument?
syllogi is a kind of deductive reasoning (from general to specific).
what are the three parts a categorical syllogi consists of: (答案请小写，答案间并用分号隔开，分号后空格一下再填下一个答案)
which of the following is not a reason to provide proper citation?
what does "procrastination" mean?
in which situations should we use citation?
what are the two locations where citations can be found in a paper?
what are the two most commonly used citation styles?
which style of citation is the most specific and why?
(stone, 2014, p. 15) is an example of mla citation.
why should we be careful of the word “be”?
why is it better to use a strong verb than to use a noun?
what are three synonyms for the word “say”(use a thesaurus)?
what are the three ways to create powerful descriptive language?
which three things (choose 3 answers) can i do to make sure that i am using forceful verbs?
when we say “sentence variety”, what can we vary?
how to tighten sentences? (答案排序, 以分号隔开。分号后空一格) a. use strong verbs b. look for words that don’t do their share of the work c. reflect on the logical relationship among sentence and ideas d. keep it clear and simple
what does “hyponymy” refers to?
which one is not a grammatical cohesion strategy?
which thematic progression pattern has been used in this paragraph? the inventor of the diode valve was fleming. he made use of the fact, first noticed by edison, that an electric current could be made to flow across the empty space between the hot filament of an electric lamp and another metal electrode placed inside the evacuated bulb. this effect depends upon the thermionic emission of electrons from the heated metal filament. (w. p. jolly, (1972). electronics, p. 61)
which thematic progression pattern has been used in this paragraph? hemp’s environmental credentials are indisputable. it grows better in organic systems than in conventional ones. it others weeds and controls pests, clearing the land for other crops. it improves the structure of the soil, with strong roots to prevent erosion. if processed in the field, it returns nutrients to the land and purports to ‘clean up’ soil contaminated with heavy metals. it is one of a minority of textile-fibre crops that can be grown in temperate climates. so why, given its potential, is so little hemp used today? (new internationalist, june 1998, p. 14)
which grammatical cohesion strategy has been used in the following paragraph? i see traces of the turtle soup, and vension, and gold spoon in this. yes, i do! cried mr. bounderby, shaking his head with obstinate cunning. ‘by the lord harry, i do.’
which lexical cohesion strategy has been used in the following paragraph? ‘now, what i want is, facts. teach these boys and girls nothing but facts. facts alone are wanted in life. plant nothing else, and root out everything else. you can only form the minds of reasoning animals upon facts: nothing else will ever be of any service to them. …stick to facts, sir!’
which lexical cohesion strategy has been used in the following paragraph? he fell asleep. what woke him was a loud crash.
which lexical cohesion strategy has been used in the following paragraph? a big tree with a thick trunk and outspread branches was nearby, and taking care to leave not the slightest mark, he climbed up into the crotch, and stretching out on one of the broad limbs, after a fashion, rested…something was coming through the bush, slowly, carefully, the same winding way rainsford had come. he flattened himself down on the limb and through a screen of leaves, saw it was a man.
what is the purpose of using cohesion strategies?
which paragraph in the following is more coherent? (仅填a或b即可) a. nauru is so all that the plane lands in what is best described as the capital's main street. to stop cars when planes are landing the seaward side of the runway has traffic lights at each end. well-fed and brightly clothed naurans cowd the tiny air terminal with their art cars. the only hotel, the luxurious menen, is a 10-minute drive half way round the island and is where new arrivals are driven off in japanese minibuses. the well-paved road passes rows of neat, modern houses, set among the trees. b. nauru is so all that the plane lands in what is best described as the capital's main street. the seaward side of the runway has traffic lights at each end to stop cars when planes are landing. the tiny air terminal is crowded with well-fed and brightly clothed naurans with their art cars. new arrivals are driven off in japanese minibuses for the 10-minute drive half way round the island to the only hotel, the luxurious menen. the well-paved road passes rows of neat, modern houses, set among the trees. (david lascelles, the financial times)
which one is more coherent?(仅填a或b即可) a. the most striking example of value rigidity i can think of is the old south indian monkey trap, which depends on value rigidity for its effectiveness. a hollowed-out coconut chained to a stake makes the trap. a monkey can put its hand though a all hole in the coconut and grab some rice inside. the monkey can put its hand into the hole but cannot take its fist out with rice in it. the monkey's value rigidity traps it when it reaches in. the rice cannot be revalued. he cannot see that freedom without rice is more valuable than capture with it. b. the most striking example of value rigidity i can think of is the old south indian monkey trap, which depends on value rigidity for its effectiveness. the trap consists of a hollowed-out coconut chained to a stake. the coconut has some rice inside which can be grabbed through a all hole. the hole is big enough so that the monkey's hand can go in, but too all for his fist with rice in it to come out. the monkey reaches in and is suddenly trapped - by nothing more than his own value rigidity. he can't revalue the rice. he cannot see that freedom without rice is more valuable than capture with it.
which one is more formal? (请从a和b里选择即可)
which ones have used nominalization?
nominalization is to turn a verb or an adjective into a noun.
write down the nouns for the following verbs or adjectives.(小写，以分号隔开，分号后空一格) discover; move; resist; react; lose; elegant; careless; intense
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