砂芯有哪些功用？

Last month the manager（经理） of a jewelry shop ( 珠宝店) received a letter. As he was very busy then, the letter lay on his desk till tea-time. He opened it and a 10-pound note(票 ) fell out onto the desk. Within the note was a letter which said:

Dear sir:

In 1935 I got engaged(订婚 ). But unfortunately I lost my job. At the time a lot of people were out of work. Six months later I got a job again, but of course I was very short of money. I came to your shop to buy a wedding ring(婚戒 ). The assistant took out some rings for me to look at, but she was called away for a moment, and I put one of the rings in my pocket. When she came back, I said I didn’t know the size of my girl’s finger. So I left the shop without buying a ring. My wife died a short while ago and the fact that I never paid for the ring has been heavy in my heart all these years. At that time, the ring cost 2 pounds so I think it is 10 pounds at today’s price and I’m sending 10 pounds.

Yours truly,

A customer (顾客 )

小题1:What happened in 1935?

A．The jewelry shop lost some rings.

B．The customer married a girl.

C．The customer stole (偷窃) a ring for his wife.

D．The customer stole a ring for his girl friend.小题2: What do you think of the customer?

A．Honest

B．Forgetful

C．Dishonest

D．Careless

默写古诗文句子（每条横线上填写一句）。

⑴采菊东篱下，_____________。

⑵万里赴戎机，_____________。

⑶春潮带雨晚来急，_____________。

⑷斯是陋室，_____________。_____________，草色入帘青

⑸后值倾覆，_____________，_____________，尔来二十有一年矣。

⑹常建《题破山寺后禅院》一诗中，通过幽静环境的描写表现人的心情和自然景色和谐相融的诗句是“_____________，_____________”。

⑺初中生活即将结束，忆往昔同学相聚时的情形历历在目，分别在即，相互赠言，用苏轼《水调歌头》的“_____________，_____________”固然能传达美好的祝愿之意，不如李白《行路难》中“_____________，_____________”更能激励同学的奋发之情。

以下是人体部分生理活动示意图，请据图回答：

(1)若b、c表示组织内的气体交换过程，该过程是通过________完成的。

(2)图中所示与外界相连的4条途径中，属于排泄的是________和________。

(3)某人患肩周炎，对其静脉注射消炎药，药物到达病灶共经过A腔________次。

(4)血管②与血管①相比，②中的血液内含量明显降低的物质有______________________________________________________________________。

(5)请写出小肠与过程a相适应的结构特点________________________________________________________________________

________________________________________________________________________。

(6)在C腔从开始舒张到舒张结束的这一时间段内，D腔的状态是________________________________________________________________________。

语言训练的最佳时期为（）

A.疾病急性期

B.发病后3～6个月

C.发病后1年内

D.发病1年后

E.发病后2～3年

辞职、罢工、怠工属于自上而下的权力运行。