正常肠道菌群对侵入肠道的致病菌有一定的____作用。

企业提取的盈余公积经批准可用于()

A.弥补亏损

B.转增资本

C.发放现金股利

D.对外投资

悬架特性可用平板式试验台检验。

阅读理解。

     The other day in school we were discussing jobs. Our teacher, Mrs. Bolt, said that vocations were very

important and that it was never too early to think about your life's work. Most of the children really weren't

too sure about what they wanted to be. But I knew exactly what I wanted to be, and when Mrs. Bolt asked

me, I replied "A truck driver."

      "A truck driver," repeated Mrs. Bolt. "Why do you want to be a truck driver, Kenneth?" 

     "Because truck drivers are always on the move. They don't have to sit at desks all day. They're out on

the road and they see a lot of the country. The pay is good, too. And you never have any homework."

     The class laughed.

     "Well, Kenneth," answered Mrs. Bolt. "You certainly sound enthusiastic. I guessed that you don't like

sitting at a desk or doing homework. Is that correct, Kenneth?"

     "Yes, I guess so," I said.

     "Well, since you are so interested in becoming a truck driver, I think you should investigate the field a little

further. I want you to go to the library and take out a book on truck driving. And I want you to write a book

report on it and hand it at the end of the month."

     "That's the last time I'll ever tell anybody my secret ambition!"

1. The word "vocations" in the first paragraph here means _____.

A. works

B. jobs

C. holidays

D. ambition

2. Why did Mrs. Bolt ask Kenneth to write the book report? Because _____.

A. she wanted him to learn about the other side of truck driving

B. she was angry with him

C. she was not satisfied with the reasons he gave

D. she wanted the whole class to follow his example

3. Which sentence does not agree with the general idea of the text?

A. Truck drivers are well paid.

B. Kenneth's wish made the whole class burst into laughter Kenneth enjoyed sitting at a desk

    doing his lessons.

C. Mrs. Bolt wanted Kenneth to write a book report.

D. It seemed as if Kenneth did not enjoy sitting at a desk or doing his lessons .

4. Why won't Kenneth tell about his ambition any more?

A. Because he can't realize his ambition

B. He just got more homework to do because he had told Mrs. Bolt about it

C. Because he was scolded by Mrs. Bolt

D. Because he was laughed at by the whole class

介于轻度智力落后与正常智力水平之间的智力状态，又称为学习迟缓的儿童属于( )

A．临界智力落后儿童

B．可教育的智力落后儿童

C．可训练的智力落后儿童

D．需要监护的智力落后儿童

下列措施中，不符合《道路交通安全法》关于对机动车、非机动车采取限制通行、禁止通行措施的规定的是（）。

A.为配合打击飞车抢夺案件，甲县交警大队决定采取禁止摩托车驶入中心城区道路的措施

B.为缓解城市拥堵，乙市交警支队决定采取禁止货车白天驶入中心城区道路的措施

C.针对某一路段货车比较多的情况，丙县交警大队决定采取禁止自行车驶入该路段的措施

D.由于交通流量的变化，为保证安全，丁县交警大队决定在某路段采取禁止车辆左转的措施