右心衰的典型体征是( )
A.恶病质B.腹水C.肝区疼痛D.紫绀E.下垂性凹陷性水肿
参考答案:E
— Must I turn off the gas after cooking?
— Of course. You can never be ______ careful with that. [ ]
A. enough
B. too
C. so
D. very
单纯肾囊肿的CT表现有哪些?