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问题

长江流域原始农耕时代的居民是（ ）

A．山顶洞人

B．河姆渡原始居民

C．半坡原始居民

D．大汶口原始居民

答案

答案：B

本题考查的是河姆渡原始文明。河姆渡原始居民是位于长江流域的原始农耕时代的居民，故选B。

单项选择题

Computers will become more advanced and they will also become easier to use.Improved speed recognition will make the operation of a computer easier.Virtual reality(虚拟现实),the technology of (71) with a computer using all of the human senses,will also contribute to better human and computer (72). Other, exotic(奇异的) models of computation are being developed,including biological conputing that uses living organisms,molecular computing that uses molecules with particular (73),and computing that uses DNA,the basic unit of heredity(遗传),to store data and carry out operations.These are examples of possible future computational platforms that,so far,are limited in abilities or are strictly (74). Scientists investigate them because of the physical limitations of miniaturizing circuits embedded in silicon. There are also (75) related to heat generated by even the tiniest of transistors.

（72）处填（）。

A．interfaces

B．behavior

C．similarities

D．comparison
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单项选择题

治疗气厥实证的最佳方剂为

A．四磨汤
B．五磨饮子
C．六磨汤
D．逍遥散
E．大七气汤
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