假如国际市场上某商品的单价从60美元涨到90美元，同期人民币对美元的汇率从8：1

有两个一样的长方形，长都是18厘米，宽都是9厘米．

（1）拼成一个长方形，它的周长是多少？

（2）拼成一个正方形，它的周长是多少？

At exactly eleven Sir Percival knocked and entered, with anxiety and worry in every line of his face. This meeting would decide his future life，and he obviously knew it.

"You may wonder, Sir Percival,”said Laura calmly, “if I am going to ask to be released (免除）from my promise to many you. I am not going to ask this. I respect my father's wishes too much.”

His face relaxed a little, but one of his feet kept beating the carpet.

"No, if we are going to withdraw. (退出）from our planned marriage, it will be because of your wish, not mine.

“Mine?” he said in great surprise. “What reason could I have for withdrawing?^’

"A reason that is very hard to tell you," she answered. "There is a change in me.”

His face went so pale that even his lips lost their color. He turned his head to one side.

"What change?" he asked, trying to appear calm.

“When the promise was made two years ago,” she said, ⁴⁴ my love did not belong to anyone. Will you forgive me, Sir Percival, if I tell you that it now belongs to another person?”

“I wish you to understand, “Laura continued, “that I will never see this person again, and that if you leave me, you only allow mc to remain a single woman for the rest of my life. All I ask is that you forgive mc and keep my secret."

‘I will do both those things, “he said. Then he looked at Laura, as if he was waiting to hear more.

"I think I have said enough to give you reason to withdraw from our marriage, “she added quietly.

“No. You have said enough to make it the dearest wish of my life to marry you, ” he said.

小题1:How did Percival feel during his meeting with Laura?

A．Angry.

B．Calm.

C．Nervous.

D．Excited.小题2:We can learn from the passage that        .

A．Laura had once promised to marry Percival

B．Laura's father wished to end her marriage

C．Percival had been married to Laura for two years

D．Percival asked to be released from the marriage小题3:The passage is probably taken out of              .

A．a novel

B．a report

C．a diary

D．an essay

            Lili have a nice toy panda?[ ]

A. Is

B. Be

C. Does

D. Do

在封建社会中，统治阶级为了维护尊卑贵贱的等级制度，要求人们在不同的场合，针对不同的对象，施行不同的跪拜礼。跪拜礼中，“稽首”为“拜中最重”，用于十分正式、庄重的场合，如拜天、拜神、拜祖先、臣拜君、子拜父、学生拜师等。“空首拜”是位尊者对于位卑者稽首拜的答拜礼。“顿首”则是（）。

A.下对上或平辈之间的礼节

B.各种祠祭及丧葬礼中的礼节

C.军队中所行特殊的跪拜礼

D.宫廷礼仪

单相整流电路分为（）等。

A、半波整流

B、全波整流

C、桥式整流

D、倍压整流电路