CT平扫时,正常肝实质平均CT值为()。
A.0~30HU
B.30~40HU
C.50~70HU
D.75~100HU
E.100~130HU
参考答案:C
---Where is your father? ---He _______ to Shanghai. He has ever ______ there twice.
A.has gone, gone
B.has been, been
C.has gone, been
D.has been, gone
在C语言中,不正确的int类型的常数是_______。
A.32768
B.0
C.037
D.0xAF