有关病理性缩复环的叙述，下列哪项是错误的 A．环的下方有压痛 B．由于分娩受阻所致

阅读理解.

     The clock struck eleven at night. The whole house was quiet. Everyone was in bed

except me. Under the strong light, I looked sadly before me at a huge pile of that troublesome

stuff they call "books".

     I was going to have my examination the next day. "When can I go to bed?" I asked 

     The clock struck twelve. "Oh, dear!" I cried. "Ten more books to read before I can

go to bed!" We pupils are the most wretched creatures in the world. Dad does not agree

with me on this. He did not have to work so hard when he was a boy.

     The clock struck one. I was quite desperate now. I forgot all I had learned. I was too

tired to go on. I did the only thing I could. I prayed, "Oh God, please help me pass the

exam tomorrow. I do promise to work hard afterwards, Amen." My eyes were so heavy

that I could hardly open them. A few minutes later, with my head on the desk, I fell asleep.

1. The underlined word "wretched" in Paragraph 3 probably means _______.

A. happy

B. disappointed

C. unhappy

D. hopeful

2. Reviewing his lessons that night didn't help him because ______.

A. it was too late at nightB. he was very tired

C. his eyelids were so heavy that he couldn't keep them open

D. he hadn't studied hard before the examination

3. What do you suppose probably happened to the author the next day______.

A. He went to a church to pray again.

B. He passed the exam all by luck.

C. He failed in the exam.

D. He was punished by his teacher.

4. The best title for the passage would be ______.

A. The Night Before the Examination

B. Working Far into the Night

C. A Slow Student

D. Going Over My Lessons

常规胸部CT扫描的层厚为（）

A.2mm

B.5mm

C.8mm

D.10mm

E.15mm

根据国家海洋局发布的《2012年中国海洋灾害公报》，海洋灾害直接经济损失最严重的省份是（）。

A、山东

B、浙江

C、福建

D、广东

气凉了，需要穿着制服时穿毛衣、背心的，要注意下摆（）塞进裤子里面，以免臃肿不堪。

A.不可

B.必须

C.可以

D.一律

强碱性阴树脂被污染的原因是什么？防止污染的方法有哪些？