肘关节后脱位,若有侧方移位可呈现()。
A.肘过伸
B.肘屈曲
C.肘内翻
D.肘外翻
E.肘旋转
参考答案:C, D
By the time he _____ back last night, we had got 200 pictures of the Chang'e-3 lunar probe.
A.came
B.had come
C.was coming
D.would come
短期重复剂量毒性试验的染毒期限为()
A.1天
B.14天
C.28天
D.90天
E.180天