空气消毒效果监测采样时，将培养皿放置的高度是A．距地面80cmB．距地面100cmC

不宜用于室外的岩石品种是( )。

A．石灰岩

B．花岗岩

C．砂岩

D．大理岩

根据短文内容，从短文后的选项中选出能填人空白处的最佳选项。选项中有两项为多余选项。

     1.____ People use money to buy food, furniture, books, bicycles and hundreds of other things they need

or want. When they work, they usually get paid in money. Most of the money today is made of metal or paper.

2.____ one of the first kinds of money was shells.

     Shells were not the only things used as money. In China, cloth and knives were used. In the Philippine

Islands, rice was used as money for a long time. Elephant tusks, monkey tails and salt were used as money in

parts of Africa. The first metal coins were made in China. They were round and had a square hole in the centre.

3.____

     Different countries have used different metals and designs for their money. 4.____ Sweden and Russia used

copper (铜) to make their money. Later some countries began to make coins of gold and silver.

     But even gold and silver were inconvenient if you had to buy something expensive. Again the Chinese

thought of a way to improve money. 5.____ The first paper money looked more like a note from one person to

another than the paper money used today. Money has had an interesting history from the days of shell money

until today.

A. The first coins in England were made of tin (锡).

B. But people used to use all kinds of things as money.

C. No one knows for certain when people began to use money.

D. People strung (串联) them together and carried them from place to place.

E. Money, as we know, is all made of paper.

F. They began to use paper money.

G. Today anyone will accept money in exchange for goods and services.

根据中医药“十九畏”，下列表述错误的是（）

A.硫黄畏芒硝

B.水银畏砒霜

C.丁香畏郁金

D.巴豆畏郁金

数据和程序以( )进制代码形式存放在存储器中。

A．二
B．八
C．十
D．十六

处理建筑物或地下构筑物接缝一般用（）

A.卷材

B.上水带

C.密封膏

D.密封条