最早的兔唇修补术见于:
A.《山海经》
B.《内经》
C.《晋书》
D.《肘后备急方》
E.《诸病源候论》
参考答案:C
下列家用电器中,正常工作一小时耗电接近1.2kW-h的是( )
A.空调
B.电冰箱
C.电视机
D.台灯
I don't think one can keep healthy _____ taking enough exercise. [ ]
A. with
B. without
C. for
D. to