短波和超短波治疗作用的描述不正确的是（） A.降低肌肉张力，缓解痉挛 B.提高感觉神

根据短文内容，回答下列问题。

     Many years ago, there was a family named Franklin. They lived in Boston. There were five girls and

six boys in the family. On a January day in 1706 another baby was born. The boy's mother and her

husband gave the boy a name-Benjamin. Benjamin was the cleverest of all the children. He could read

when he was five and write when he was seven. The next year his parents sent him to school.

     In school Benjamin was good at reading and writing, but not good at math. He read all of his father's

books. And when he had money, he always went to buy books. He liked books. They told him how to

do something. The boy liked to use his head and tried to find ways to help people enjoy life more. For

example, he tried to know if there was some way to swim farther, maybe with something on his hands or

feet. Slowly a picture of swimming shoes, or paddles, grew in his mind. The paddles must be neither too

big nor too small. And they must be neither too heavy nor light. At last he invented the paddle for

swimming.

1. How many children did Mr Franklin have?

2. Why was it said Benjamin was clever?

3. When did Benjamin begin to go to school?

4. Why did Benjamin like books?

5.What did Benjamin invent the paddles for?

建设单位管理费包括( )。

A．工作人员工资

B．施工现场津贴

C．技术图书资料费

D．进行工程、设备材料和服务招标支付的服务费用

E．标底或招标控制价

依据如图回答问题：

（1）将二氧化碳倒入烧杯中．现象：______； 产生此现象的原因是：①______②______．

（2）将一个充满二氧化碳的试管倒立在盛有澄清石灰水的烧杯中，可以观察到的现象是______；该反应的化学方程式是______．

根据我国《证券法》的规定，收购要约的期限届满，收购人持有的被收购公司的股份数达到该公司已发行的股份总数的( )以上的，该上市公司的股票应当在证券交易所终止上市交易。

A．75%

B．30%

C．60%

D．90%

计算机网络能实现资源共享，这些资源包括（）。

A、软件

B、办公设备

C、计算机硬件

D、数据