【简答题】Seat occupation has become a common phenomenon in your university. The library management has taken some measures to stop it, but in vain. Please write to the university authorities, stating the pheno...
【多选题】正丙烷与等摩尔的溴单质在光照下发生自由基取代反应时,可能会出现下列的哪种情况
A.
会得到至少2种产物,分别为2-溴丙烷和1-溴丙烷
B.
至少会得到两种产物,其中:2-溴丙烷的产率高于1-溴丙烷
【单选题】According to a study carried out by an American university, when you eat has ______ on your mood as ______ you eat.
A.
much of as an effect; what
B.
much of as an effect; which
C.
as much of an effect; what
D.
as much of an effect; which
【单选题】Has your sister succeeded_____ the first place at the university this term?
【单选题】--How ___ your daughter ___ at university? ---She’s doing fine. Thank you.
【简答题】The film turned out to be (successful ) _____than we had expected.(2009.12)
【简答题】The Student Union at your university has decided to organize a contest, calling for ideas to improve the outlook of the campus. Write an announcement to invite students to participate, giving informat...
【判断题】绝缘电阻表测量时,摇动手柄转速 刚达到 120 r/min 即可