位于肝右叶下方的腹膜隐窝是()
A.十二指肠上隐窝
B.十二指肠下隐窝
C.盲肠后隐窝
D.肝肾隐窝
E.乙状结肠间隐窝
参考答案:D
The manager says he needs an assistant that he can depend on to deal with the problems that may happen in his _______.
A.presence
B.absence
C.distance
D.appearance
需要两回路电源线路的用电单位,( )采用同级电压供电。但根据各级负荷的不同需要及地区供电条件,亦可采用不同电压供电。
A.必须
B.应
C.宜
D.不宜