生殖毒性试验的观察指标,除外
A.受孕率
B.正常分娩率
C.幼仔体重增长率
D.幼仔出生存活率
E.幼仔哺育成活率
参考答案:C
呼吸性碱中毒()
A.小肠瘘
B.结肠造口
C.窒息
D.高热,过度换气
E.幽门梗阻
His mother _____ teacher.
A.became
B.has turned
C.came
D.proved