问题 单项选择题

以下()不能作为大体积混凝土的浇筑方案。

A.全面分层浇筑

B.分段分层浇筑

C.斜面分层浇筑

D.不分层浇筑

答案

参考答案:D

阅读理解

阅读理解。

     People use money to buy food, books, bicycles and hundreds of other things they need When they work, they usually get paid in money. 

     Most of the money used today is made of metal or paper. But in ancient time

people often used all kinds of things as money. One of the first kinds of money was

shells.

     In China, cloth and knives were used as money. Elephant tusks, monkey tails and

salt were used in some parts of Africa. Rice was also a kind of money used by the

ancient people in some islands. Cows and other animals were used as money, too.

     The first copper coins were made in China. They were round and had a square

hole in the centre. Different countries had used different metals for their money. Later some countries began to make coins of gold and silver. But gold and silver were

heavy to carry when people need a lot of coins to buy something expensive. The

Chinese were the first to use paper money. The first paper money looked more like a note from one paper to another than the paper money used today.   

1. We use          as money today.

A. paper                            

B. shells      

C. gold and silver                

D. copper coins

2. People gave up gold and silver coins because              .   

A. they were too heavy

B. they would be for future use       .

C. they were easy to slip off

D. they were useless     .                

3.          first used paper money.

A. India                

B. America

C. France                

D. China

4. African people used _       as money in ancient time.

A. cloth and knives

B. cows and other animals

C. copper coins

D. tusks, monkey tails and salt

5. The best title for this passage is            .

A. Paper Can Be Used as Money

B. Africa Money Forms

C. The History of Money

D. Money in Ancient Time

多项选择题