开拆的具体要求是:地(市)以上局开拆机要袋,必须()进行,以便分清责任。
参考答案:双人会同
—Mind your steps as you go, or you'll fall down on to the wet ground.
—___________.[ ]
A. Not at all
B. Thank you
C. I don't
D. Don't mention it
急性肾衰少尿期透析的指征有()。
A.血Cr≥530.4μmol/L
B.血BUN每日上升超过10.7mmol/L
C.血钾在6~6.5mmol/L以上
D.pH<7.25,难以纠正
E.伴急性肺水肿