对旋光度不变的某样品,若用长度为 10 cm, 20 cm 的旋光管测其旋光度,测量值分别为 α1,α2,则:
表格中输入多行文字时,要按( )换行。
使用分光光度计测量吸光度,为了使测得的吸光度更精确,则应:
—do you know jim quarrel with his brother? —i don’t know, _______.
下列属于公众责任险的是()。
the cold and dry climate of antarctica _____ it one of the toughest places on earth to live.
what inspire people to do sports?
软件质量可以通过后期测试得以提高。
is your father a doctor? yes, he is. he ______ in town hospital.
为防止粘合衬外铺,在过粘合机时粘合在机器上,所以衬样要比面料样板小0.2~7.5px。
不能够独立存在的语素是什么语素?
which of the following are tips for getting along well with parents?
词根 “patri”的意思是 father, “patrick” 在英语里用作男子名.
a. we are having just a few friends over and it will be very informal, so there is no need to dress up. b. i would like to invite you to a all house-warming dinner party on saturday, march 8th. c.we do hope that you can come and look forward to seeing you. question: what is the correct order of the sentences given above?
love, first and foremost, means being there for the most important things.
a package tour is a tour arranged by a travel agent. your transportation and food and lodging are all provided at an inclusive price.
“绿水青山就是金山银山。”的译文是“clear waters and green mountains are gold and silver mountains. ”
i had been looking for the book for two days____ i found it at last.