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问题 单项选择题 A1/A2型题

对坐骨神经行程描述错误的是（）

A.是全身最粗大的神经，起于腰丛

B.多以单干形式出梨状肌下孔

C.在臀大肌深面，坐骨结节与大转子之间，进入股后区

D.行于大收肌与股二头肌长头之间

E.至腘窝上角分为胫神经和腓总神经

答案

参考答案：A

填空题

分解因式：（a-b）2（a+b）+（a-b）（a+b）2=______（a-b）（a+b）．
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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.

（69）处填（）。

A．relying on

B．according to

C．by means of

D．dependent on
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