圆锥管与圆柱管正交相贯，其相贯线常采用什么法求得？

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（东西） they call “books”.

I was going to have my examination the next day.  “When can I go to bed？” I asked myself. I didn’t answer. In fact I dared not.

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（绝望的） 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.

小题1:When the author was going over his lessons, all the others in the house were  ________ .

A．asleep

B．outside

C．working in bed

D．quietly laughing at him小题2:He underlined word “wretched” in Paragraph 3 probably means _______ .

A．very happy

B．disappointed

C．very unhappy

D．hopeful小题3:Reviewing his lessons didn’t help him because     .

A．it was too late at night

B．he was very tired

C．his eyes lids were so heavy that he couldn’t keep them open

D．he hadn’t studied hard before the examination小题4:What do you suppose happened to the author later？

A．He went to a church to pray again

B．He passed the exam by sheer luck

C．He failed in the exam

D．He was punished by his teacher小题5: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

智力成果

计算机的 (6) 通常由动态RAM(DRAM)构成。

A．CMOS参数存储器

B．Cache

C．外存储器

D．主存储器

下列药物中可用于治疗心力衰竭的是

A．氯沙坦

B．硝苯地平

C．地高辛

D．甲基多巴

E．盐酸美西律

下述碳水化合物中，能被机体消化、吸收、利用的是（）。

A、淀粉

B、纤维素

C、阿拉伯胶

D、果胶

E、果糖