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问题 问答题 简答题

羊水胎粪污染如何分度及临床意义是什么？

答案

参考答案：

羊水污染分三度。

①Ⅰ度浅绿色

②Ⅱ度黄绿色，浑浊

③Ⅲ度棕黄色，稠厚头先露羊水污染，提示胎儿窘迫；而臀先露羊水污染，不一定是胎儿缺氧表现

单项选择题

正常骨盆入口平面呈

A．横椭圆形
B．纵椭圆形
C．正圆形
D．正三角形
E．倒三角形
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单项选择题

Software quality assurance is now an (50) sub-discipline of software engineering. As Bucldy and Oston point out, (51) software quality assurance is likely to lead to an ultimate (52) of software costs. However, the major hurdle in the path of software management in this area is the lack of (53) software standards. The development of accepted and generally applicable standards should be one of the principal goals of (54) in software engineering.

53（）

A．usable

B．usage

C．useless

D．useness
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