计划免疫是贯彻（）的一种措施？

Mr. Smith is one of my friends. He can run very fast and he is always ready to show(显示) how fast he can run.

One day a thief(小偷) breaks into(闯入)his house，takes some things of his and runs off as fast as he can. Mr. Smith runs after him and shouts(喊)：“Stop! Stop! Don't you know you can't run away from me?”

But the thief only runs faster. Mr. Smith gets angry. He tries his best to run. He is soon a few miles away from his house. He doesn't see anything or anybody and is still rushing(冲) alone(单独地) when he runs into(撞到) me.

“Why are you in such a hurry?”

“I'm trying to catch a thief.”

“But where is the thief?” I ask.

“Far, far behind me,” says Mr. Smith with a smile on his face.

“He thinks he can run faster than me，but you see he is wrong.”

小题1:Mr. Smith wants everybody to know he is good at ______.

A．running

B．catching　　

C．shouting

D．talking小题2:Someone takes some of his things from his house and ______.

A．hides(藏) behind his house

B．runs away quickly

C．flies away

D．is caught(被抓住)小题3:Mr. Smith gets angry because the thief ______.

A．stops　

B．runs away

C．doesn't stop

D．runs into him小题4:Mr. Smith is very glad that ________.

A．he is very tired　

B．he runs very fast

C．the thief runs away

D．he runs faster than the thief小题5:At last the thief _________.

A．runs away

B．is very tired　

C．is caught

D．is after Mr. Smith

在SQL中，集合成员算术比较操作“元组＜＞ALL(集合)”中的“＜＞ALL”的等价操作符是( )。

A．NOT IN

B．IN

C．＜＞SOME

D．=SOME

扁水箱、支梁式水箱多采用（）式布置。

导游人员在与游客交往服务过程中要注意哪几个问题

由于水文工作具有（）等特点，水文监测工作需要以流域为单位，长期、持续、全面、系统地进行观测，以探求流域和流域内水文规律和水资源分布特征。

A.长期性

B.连续性

C.地区性

D.局部性