患者，女，10天。出生后3小时即发生呕吐，呕吐物含胆汁。腹部平

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问题单项选择题

患者，女，10天。出生后3小时即发生呕吐，呕吐物含胆汁。腹部平片提示机械性肠梗阻、腹腔内有钙化灶。首先考虑的诊断是

A．先天性肠闭锁

B．先天性肠旋转不良

C．胎粪性腹膜炎

D．胎粪性肠梗阻

E．先天性肠重复畸形

答案

参考答案：D

选择题

Linda can't attend the party _____ at Tom's house at present because she is preparing a

speech for the party _____ at Marie's house tomorrow. [ ]

A. being held; to be held

B. to be held; held

C. held; being held

D. to be held; to be held

单项选择题

( )是指对设计结果的检查和提供客观证据，以证实设计输出满足设计输入的要求。

A．设计验收

B．设计评审

C．设计验证

D．设计试验