【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...
【简答题】(2009.12)The proposal about the annual sales (discuss) ________ at the next board meeting.
【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】丙烷可与下列哪种物质起反应
D.
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【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