新生儿出现呼吸困难，不能正常哺乳，应首先考虑（） A.先天性双_爱下问搜题

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问题单项选择题

新生儿出现呼吸困难，不能正常哺乳，应首先考虑（）

A.先天性双后鼻孔闭锁

B.先天性心脏病

C.先天性喉软骨畸形

D.鼻部脑膜脑膨出

E.急性会厌炎

答案

参考答案：A

选择题

The teacher said, "My son had the same experience as the little boy."

The teacher said that his son had __ the same experience as the little boy. [ ]

A. been

B. have

C. had

D. done

问答题简答题

水稻土的一些特殊的水分物理性状与耕性