早产儿的特点是()
A.出生体重大于2500g
B.哭声轻柔,有一定肌肉张力
C.耳壳软骨按压后很快恢复
D.足底的纹理难以看清
E.男婴睾丸下降
参考答案:D
关于慢性肾功能不全急性加重的危险因素不包括().
A.血容量不足
B.肾毒性药物
C.肾脏供血急剧减少
D.重度感染
E.贫血
We ____ there when it ____ to rain. [ ]
A. were getting-would begin
B. were about to get-began
C. had got-had begun
D. would get-began