—Can I ask you _____ questions?
—Sure. [ ]
A. any
B. much
C. some
D. a little
答案:C
1,5,21,99,351,( )
A.729B.991C.1377D.1521
溺水伤员的后续生命支持()
A.供氧是吸入低浓度氧
B.供氧不能采用机械通风
C.根据病情可使用高压氧治疗