如果点P(﹣3,k)在直线y﹦2x+2上,那么点P到x轴的距离是 [ ]
A.﹣4
B.4
C.±4
D.3
答案:B
–- Excuse me, would you mind answering a few questions?
--- Well, I don’t know. I’m in a hurry _______.
A.actually
B.seriously
C.immediately
D.anxiously
在临床上,皮疹泛发是指皮损面积大于体表面积的:
A.40%
B.50%
C.60%
D.70%
E.80%