用氯霉素未能确诊的疑似伤寒病儿应采刚的培养是 A．血培养 B．

搜题请搜索小程序“爱下问搜题”

问题单项选择题

用氯霉素未能确诊的疑似伤寒病儿应采刚的培养是

A．血培养
B．尿培养
C．胆汁培养
D．骨髓培养
E．粪便培养

答案

参考答案：D

解析：用氯霉素未能确诊的疑似伤寒病儿应进行骨髓培养。

选择题

— ___________ there any students in the classroom?

— No, there aren't. But there _____________ some half an hour ago.[ ]

A. Are, were

B. were, are

C. are, are

D. were, were

单项选择题

由于蒸汽的导热性能差，可能使管子过热而损坏，这不可能是由（）故障引起的

A.汽水分层

B.下降管带汽

C.水循环停滞

D.水循环倒流