各级指挥要根据各自职责任务独立开展工作，并服从（）的总体协调和指挥。

A. they should spend sometime

B. the students are not expected

C. they had so many choices

D. many of them told me

E. many of them expressed disappointment

In my spoken English class, I asked the students about their university life. To my surprise, 小题1:. After their highly controlled(控制) high school lives, they were having difficulty getting used to (习惯) the free time in the university. When I asked them to describe their high school lives, 小题2:they got up at six in the morning and studied until ten or even later at night. Most of this time was spent doing lots of homework.

When they entered the university, in my opinion,小题3:to spend all their waking hours studying. They should also take an active part in social activities. They should learn to divide their time outside of class between sport sand clubs. What’s more, 小题4:watching TV and chatting with their roommates. But what surprised me most was that many of them did not seem happy because小题5:. They felt that they should be doing something else what ever they were doing. That’s why they were not happy.

To those students, my advice is: Get used to it and learn to make decisions for yourselves.

全向天线适用于（）.

A.农村

B.市中心

C.商场

D.厂区

Papez回路

昆虫纲在外形上的主要特征是什么？

直驱型风电机组相比于异步机（）。

A.传动部件的减少提高了可靠性

B.提高了风电机组效率

C.可进行无功补偿

D.降低了成本