设向量组(Ⅰ)：；向量组(Ⅱ)：，记A=(α1，α2，α3)，B=(β1，β2，β3

阅读理解。

     Jack is a twenty-year-old young man. Two years ago, when he finished middle school, he found work

in a shop. Usually he works until ten o'clock in the evening. He is very tired when he gets home. After a

quick supper he goes to bed and soon falls asleep. His grandma who lives downstairs is pleased

(高兴的) with him.

     One day, on his way home, he met his friend Mary. They were both happy. He asked the girl to his

house, and she agreed happily. He bought some fruit and drinks for her. And they talked about their

school, teachers, classmates and their future. They talked for a long time.

     "Have a look at your watch, please," said the girl. "What time is it now?"

     "Sorry, something is wrong with my watch," said Jack. "Where's yours?"

     "I left it at home."

     Jack thought for a moment and found a way. He began to stamp his foot on the floor, "Bang! Bang!

Bang!"

     The sound woke his grandma up. The old woman shouted downstairs, "It's twelve o'clock in the

night. Why are you still jumping upstairs?"

1. Jack was _____ when he finished middle school.

A. sixteen

B. eighteen

C. twenty

D. fifteen

2. The old woman is satisfied (满意的) with Jack because _____. 

A. He's her grandson.

B. He's clever.

C. He can keep quiet.

D. He gets home on time.

3. From the story, we can know that Mary is Jack's _____.

A. classmate

B. colleague (同事)

C. aunt

D. wife

4. The word "stamp" in the story means _____ in Chinese.

A. 盖印

B. 跺

C. 贴邮票

D. 承认

5. Jack stamped his foot on the floor in order to (为了) _____.

A. wake his grandma up      

B. make his grandma angry

C. let his grandma tell him the time

D. let his grandma buy him a watch

产褥感染是指分娩期及产褥期的（）

A.泌尿系统感染

B.乳腺炎

C.上呼吸道感染

D.生殖道感染

E.风湿热

一个心理健康的人，必须保持自尊；一个人只有受到自己所尊敬的人的尊敬，才能保持自尊；而一个用“追星”方式来表达自己尊敬情感的人，不可能受到自己所尊敬的人的尊敬。
以下哪项结论可以从题干的断定中推出( )

A．一个心理健康的人，不可能用“追星”的方式来表达自己的尊敬情感

B．一个心理健康的人，不可能接受用“追星”的方式所表达的尊敬

C．一个人如果受到自己所尊敬的人的尊敬，他(她)一定是个心理健康的人

D．没有一个保持自尊的人，会尊敬一个用“追星”方式表达尊敬情感的人

道岔转换及锁闭装置的维护下列哪项不属于电务部门负责（）。

A.道岔密贴调整工作

B.送受电端接续线的钻孔

C.受电端接续线的钻孔

D.基本轨通长垫板的维修

灰土挤密桩