矿山公路的转变路段，为防止汽车在一定速度下行驶不向外侧滑移，应按技术规范要求将曲线路

应用J₆级经纬仪测角时，边长大于( )m时，宜用一测回。

A．150
B．100
C．250
D．200

某企业2002年12月31日售出的商品，因质量问题于2003年2月15日退回，财务报告批准报出日为2003年4月28日，则该企业在编制2002年度利润表时应调减2002年度的主营业务成本。 ( )

  People use money to buy food, furniture, books, bicycles and hundreds of other things they need or want. Most of the money today is made of metal or paper. But people used to use all kinds of things as money. 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.

Some animals were used as money too. The first metal coins were made in China. They were round and had a square hole in the center. People strung them together and carried them from place to place. The first coins in England were made of tin (锡). Sweden and Russia used copper (铜) to make their money. Later countries began to make coins of gold and silver.

Later the Chinese thought of a way to improve money. They began to use paper money. Money has had an interesting history from the days of shell money until today.

小题1:People used different kinds of things as          .

A．gold

B．metal

C．money

D．silver小题2:Tin was first made as money in         .

A．China

B．Philippine Islands

C．England

D．Russia小题3: The word "strung" in the passage probably means         ."

A．came

B．tied

C．put

D．made小题4: The best topic of the article is”         .”

A．How Many Kinds of Money Are There in the World

B．The History of Money

C．Money in Different Countries

D．The Use of Money

韶山8型电力机车的轴列式是（）。

A.Co—Co

B.2（Bo—Bo）

C.Bo—Bo

D.Bo—Bo—Bo

黎苗族妇女爱在背小孩的行蒌面上放一些树枝叶，这有什么含义？