循环变动和季节变动都属于有规律的周期性变动。

阅读理解。

     One Sunday morning John was crossing a bridge. He saw a fisherman on the bank of a river under him.

He stopped to watch him quietly.

     After a few minutes, the fisherman pulled his line out. There was a big, fat fish at the end of it. The

fisherman took it off the hook and threw it back into the water. Then he put his hook and line into the water

again. After a few more minutes he caught another big fish. Again he threw it back into the river. Then, the

third time, he caught a small fish, He put it into his basket and started to get ready to go. John was so

surprised that he went down to the river bank and asked the fisherman,"Why did you throw those beautiful,

big fishes back into the river, and keep only the small one?"

     The fisherman smiled and answered, "Oh, my frying pan is small."

1. Where was the fisherman?

A. In the river.

B. By the river.

C. On the river.

D. Near the river.

2. The fisherman put _____ into his basket and started to go home.

A. a small fish

B. a big fish

C. a small frying pan

D. Both A and B

3. How many times did the fisherman pull his line out?

A. Once.

B. Twice.

C. Three times.

D. Four times.

4. The fisherman only kept the small fish because ______.

A. he didn't like big fishes

B. the small fish was lovely

C. his frying pan was not big enough to cook a big fish

D. small fish was usually more delicious

5. We can infer (推断) from the passage that ______.

A. the fisherman enjoyed a relaxing life

B. the fisherman was poor

C. the fisherman loved small fishes

D. the fisherman was foolish

在猪背部及腹部皮肤上形成红斑和疹块的传染病是（）

A.猪肺疫

B.仔猪副伤寒

C.猪丹毒

D.猪瘟

E.高热病

到2000 年，全国基本实现了普及年义务教育[ ]

A．5年

B．6年

C．9年

D．12年

中兴S320的以太网板最多支持个FE用户口？（）

A.2

B.4

C.6

D.8

甲医药公司与乙运输公司订立了一份运输合同，要求乙将价值100万元的药品运往丙公司。因乙的车辆当天全部外出，乙遂委托个体运输户张某代运，并约定了运价。由于当天下大雨，张某不能按时赶到，就宿于某旅馆。旅馆有车库，但张某为省钱，将车停在河堤旁。当晚山洪暴发，冲倒车辆，致使药品损失大半。对此损失应由谁赔偿()

A．由甲医药公司赔偿

B．由乙运输公司赔偿

C．由张某赔偿

D．由乙运输公司和张某共同赔偿