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【简答题】
Will this flight get there on time?
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反馈参考答案：
举一反三
【单选题】Why the shortage is most severe in developing countries?
A.
Many of their nurses leave to other countries.
B.
They want to make more money.
C.
They want better working conditions and better chances for career development.
D.
All of the above are right.
【简答题】长焦距的定义?
【简答题】微生物调节其初级代谢的三种方式大致有（）、（）和遗传控制。
【判断题】当人们利用微生物合成某种代谢产物时,必须打破微生物原有的代谢调控系统,使其在适当条件下建立新的代谢方式,从而使微生物超量积累人们所期望的产物,即产物浓度远远超过细胞正常生长和代谢所需的范围。 C. 不一定
A.
正确
B.
错误
【单选题】Why is K’s farm depicted as suffering from the shortage of water?
A.
Scarcity of water is common in South Africa
B.
It corresponds to the shortage of all the other vital supplies people suffer in the novel
C.
It shows a time of social upheaval when any material possession is scarce
D.
Water is the source of life
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