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问题 单项选择题

触诊瓣胃阻塞病牛，能引起其疼痛不安的部位是（）

A.左侧4～6肋间与肩关节水平线交界上下

B.左侧5～7肋间与肩关节水平线交界上下

C.左侧7～9肋间与肩关节水平线交界上下

D.右侧7～9肋间与肩关节水平线交界上下

E.右侧5～7肋间与肩关节水平线交界上下

答案

参考答案：D

应用设计题

请根据光的反射定律，在图中画出法线ON和平面镜的位置。
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单项选择题

All known techniques for handling complex problems successfully seem to fall into one of the three classes: subdividing the problem (51) , ignoring irrelevant detail in a safe way (52) , and having an independent agent (53) the internal consistency (contextual checking). The first two provide guidelines for solving the problem, the third serves to provide early warnings. A good programming language supports all three.
In subdividing problem, some of the subproblems may be similar to the (54) problem. It leads us to a (55) solution. This (55) solution is viable provided each of the subproblems is easier to solve than the original problem.

A．check

B．original

C．perform

D．recursive
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