西汉和东汉在处理民族关系上的相同之处有①、打败了对两汉有威胁的匈奴 ②、建立发展

题型:选择题

问题:

西汉和东汉在处理民族关系上的相同之处有①、打败了对两汉有威胁的匈奴 ②、建立发展了同西域各族的友好关系 ③、为民族间经济文化的交流提供条件 ④、建立了同西南各族的联系

A.①②③④

B.①③④

C.①②③

D.②③④

考点:三省六部制的发展汉代“推恩令”九品中正制中国古代的官服
题型:选择题

疟疾病多见()

A.弦脉

B.紧脉

C.芤脉

D.沉脉

E.实脉

题型:选择题
已知抛物线y=a(x-1)2+h(a≠0)与x轴交于A(x1,0),B(3,0)两点,则线段AB的长度为(  )
A.1B.2C.3D.4
题型:选择题

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.

题型:选择题

在设计病例对照研究时,对照的选择最好是()

A.从该地区未患该病的全人群中选对照

B.从医院的其他病人中选对照

C.从病人的亲属中选对照

D.从病人的同事中选对照

E.从不同人群中选择多组对照

题型:选择题

如下图是遗传系谱图,该病为X染色体上隐性遗传病,5号的致病基因是由()

A.1号传下来

B.2号传下来

C.3号传下来

D.4号传下来

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