2009年4月5日，朝鲜进行的火箭发射吸引了全世界的眼球。 偏二甲肼（其化学式为

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

分权的主要途径有( )。

A．改变组织设计中的权力分配

B．下级人员主动申请

C．主管人员在工作中授权

D．上级主管部门干预

下列四种垃圾处理方法中，较为合理的是(　　)

A．堆积

B．填理

C．分类回收

D．焚烧

产后第3天突然出现畏寒、高热，体温40℃，伴有恶心、呕吐，下腹剧痛、压痛、反跳痛，腹肌紧张感明显。最可能的诊断是（）

A.子宫内膜炎

B.下肢血栓性静脉炎

C.急性盆腔结缔组织炎

D.急性盆腔腹膜炎

E.产后宫缩

动车组在途中发生哪13类危及行车安全的故障时，必须立即停车？