放射性核素发生器是一种从长半衰期母体核素中分离出短半衰期子体核素的A．核仪器 B．反

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      In the old days, the farmers were very poor. They had no money to buy tracitors(拖拉机).  They

had to make some animals work on the farm .

      Jack had a donkey(驴)  called "Jiajia".  He wanted the donkey to work for him, but the donkey

didn't do as he told it. So he asked his father to take the rope(绳索) that was tied around the neck of the

don- key when it worked. But when Jack wanted the donkey to start, turn right or turn left, he couldn't

call the name of the donkey, because his father was with the donkey. If he called the donkey's name, he

thought it was impolite (不礼貌的). So when he wanted the donkey to turn left, he said, "Father, turn left. "And when he wanted the donkey to turn right, he said,"Father, turn right. ,, A long time later, the donkey

got used to listening to the name "Father" , and forgot his name "Jiajia".

      Later on Jack bought a tractor, and he wanted to sell the donkey. One day, a man came to buy the

donkey. But after the man paid for the donkey, he couldn't pull(拉) it away. He didn't know what to do.

Jack said to him, "You have to call it "Father", if you want to make it go with you. "

1. At first Jack made           work on the farm.         

A. his father                

B. a donkey

C. a tractor                  

D. a man

2. The underlined word "tied" means           in this passage in Chinese.

A. 围绕    

B. 打结    

C. 系;栓  

D. 牵

3. After a long time, the donkey           .         

A. could work as Jack told it

B. liked working on the farm

C. made friend with Jack's father

D. only remembered the name " Father"

4. Jack wanted to sell the donkey because        .        

A. it was too old

B. it was too lazy

C. he bought a tractor

D. he didn't want to call it 6'Father"

5. Which of the following is TRUE?          

A. "Jiajia" is the name of Jack's father.

B. Later on nobody wanted to buy the donkey.

C. In the old days, the farmers only had money to buy donkeys.

D. If someone wanted to pull the donkey away, he had to call it " Father".

真武汤证中“身瞤动，振振欲擗地”的病机是（）

A.水饮浸渍，筋骨肌肉失养

B.汗多血虚，气血不足，筋骨筋肉失养

C.发汗太过，津液受伤，筋骨筋肉失养

D.肾阴虚，水不函木，肝风内动

E.阴阳两虚，阴不濡养，阳不温煦，筋骨筋肉失养

证明DNA是遗传物质的两个关键性实验是（）、（）这两个实验中主要的论点证据是：（）。

当前中国农村文化管理体制的现状仍存在不足，表现在（）等不同方面。

A.文化建设和发展的行政管理结构

B.文化建设和发展的宏观调控和微观管理关系的处理

C.文化建设和发展的行政基本手段

D.文化建设和发展的所有制结构

我国现行《宪法》规定，全国人民代表大会委员会的组成人员中，应当有适当名额的 ( )。

A．少数民族代表

B．妇女代表

C．华侨代表

D．军队代表