不能诊断现症幽门螺杆菌感染的是()
A.13C或14C呼气试验
B.血清幽门螺杆菌抗体测定
C.快速尿素酶试验
D.粪便幽门螺杆菌抗原检测
E.组织病理学检测
参考答案:B
Some of us fail to learn that pain is the body’s way of informing the mind ______ we are doing something wrong, but not necessarily ______ is wrong.
A.that, what
B.that, where
C.what, that
D.what, what
挖掘机作业时,与架空线路220kV的(最大弧垂时垂直距离)安全距离为()m。
A、4
B、5
C、6
D、7