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问题 单项选择题 A1/A2型题

原发性肝癌患者行肝叶切除术前用酸性液灌肠的目的是（）

A.减轻患者局部刺激

B.避免血氨升高

C.减少灌肠液用量

D.提高清洁效果

E.预防术后碱中毒

答案

参考答案：B

解析：术前用酸性液灌肠的目的是减少肠道氨的吸收，防止手术后肝性脑病。

问答题 简答题

简述关于原始凭证的错误更正的规定。
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单项选择题

Programming is a (46) that has various engineering and (47) aspects. Although most of these aspects are interrelated, each of them covers a number of (48) and goals winch are very specific. The progress being made in teaching (49) is reflected by the fact that most (50) science curricula contain a broad spectrum of programming courses, each emphasizing a different aspect of programming.

A．notation

B．physical

C．function

D．discipline

E．philosophy

F．software engineering

G．characteristics

H．mathematical

I．mathematical

J．programK. methodL. computer
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