信息搜集的原则有（）A．针对性 B．系统性 C．科学性 D．预见性 E．计划性

通读对话，选择可以填入相应空白处的五个答案。

A：What's the date today?

B：   1   

A：And what's the date tomorrow?

B：It's September 31.

A：   2    September has only thirty days.

B：Oh, I see.

A：Please remember this. There are thirty-one days in January,

     March, May, July, August, October and December. And thirty

     days in April, June, September and November.

B：   3    

A：Oh, it has twenty-eight or twenty-nine days.

B：What is your favorite month?

A：   4    But I like June and July best.

B：Why?

A：   5    

B：Is swimming your favorite sport?

A：Yes, and I like growing flowers, too. April,

     May and September are also my favorite months.

A. What about February?

B. It's September 30.

C. It's hard to say.

D. Because I can go swimming.

E. Oh, you're wrong.

F. It's Friday.

1._____ 2._____ 3._____ 4._____ 5._____

观察漫画，回答问题。

（1）上面漫画反映出一种什么现象？

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（2）漫画中的两名同学对想参加活动的同学的态度正确吗？为什么？

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（3）分析漫画中反映的问题，你认为我们应如何对待他人？

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产业规制

在实时操作系统中，两个任务并发执行，一个任务要等待另一个任务发来消息，或建立某个条件后再向前执行，这种制约性合作关系被称为任务的（）

A.同步

B.互斥

C.调度

D.执行

利用心轴外圃与工件内孔的过盈配合来实现夹紧，定位元件与夹紧元件合为一体，它是一种（）夹紧结构。

A.自动定位

B.特殊定位

C.可调定位

D.可换定位