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【单选题】
流体的粘性与流体的 无关A.
分子内聚力
B.
分子动量交换
C.
速度梯度
D.
温度
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【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...
【单选题】According to the author, the second advantage of Green EFL is that ______.
A.
students will not be confined to learn a particular culture value
B.
students may develop sensitivity toward their surroundings
C.
students can learn values through Green EFL
D.
students shall have a better understanding of the global issue
【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
C.
会得到产率相近的两种产物
D.
只得到一种产物
【单选题】What sets apart the Green EFL program from other EFL programs?
A.
A natural and enjoyable setting.
B.
Encouraging learner autonomy.
C.
A large amount of material available.
D.
Doing project work.
【单选题】(2009.12)________ the weather improves, we will suffer a huge loss in the tourist industry.
A.
As
B.
Since
C.
While
D.
Unless
【单选题】丙烷可与下列哪种物质起反应
A.
KMno4
B.
. HCI
C.
Cl2
D.
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【简答题】The film turned out to be (successful ) _____than we had expected.(2009.12)
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