问题 多项选择题

多发性硬化的MRI表现包括()

A.上述斑块灶周围可有明显强化

B.侧脑室周围多个类圆形斑块

C.慢性病例可有脑萎缩

D.脊髓内斑块状长T1长T2信号

E.大脑皮质区大片状楔形长T1长T2信号

答案

参考答案:A, B, C, D

解析:本病病变多在白质,且病灶为斑片状,大脑皮质区大片状楔形长T1长T2信号不符合本病特点。

阅读理解

根据短文内容, 从短文后的选项中选出能填入空白处的最佳选项。 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 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 (串连) 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.

单项选择题