尿液常规检查标本从留取到检查的时间最多不能超过()。
A.0.5h
B.1.5h
C.2h
D.2.5h
E.3h
参考答案:C
打叶风分
When the accident happened, your brother escaped being hurt, _______?
A.didn’t he
B.did he
C.didn’t it
D.did it