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问题 单项选择题

国家对列入目录的( )种入境进口制度民用商品实施验证。

A．62

B．61

C．63

D．64

答案

参考答案：A

解析： 国家对列入目录的62种入境进口制度民用商品实施验证。

单项选择题 A1型题

关于前置胎盘的临床表现下述哪一项是正确的（）

A.妊娠晚期有痛性 * * 流血

B.胎盘位置越低， * * 流血出现越晚

C.胎先露常如期入盆

D.贫血程度与出血量不成正比

E.贫血程度与出血量成正比
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单项选择题

(66) method is the use of a data processing system to represent selected behavioral (67) of a physical or abstract system. For example, the representation of air streams around airfoils at various velocities, temperatures, and air pressures with such a system.

Emulation method is slightly different, it uses a data processing system to imitate another data processing system, so that the imitating system accepts the same data, executes the same programs, and achieves the same (68) as the imitated system. Emulation is usually achieved (69) hardware or firmware. In a network, for example, microcomputers might emulate terminals (70) communicate with mainframe.

（67）处填（）。

A．qualification

B．characteristics

C．specialities

D．properties
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