国家卫生部对500张床位以上的医院感染管理的质量指标规定:无菌切口感染率为多少()
A.≤0.3%
B.≤0.5%
C.≤0.7%
D.≤0.9%
E.≤1%
参考答案:B
—Jack, would you mind if I use your ipad?
—_______.[ ]
A. Of course not, go ahead
B. Yes, please
C. Of course, do as you like
D. No, you'd better not
云销雨霁,彩彻区明。(),()。(王勃《滕王阁序》)