—We know there are lots of ways to avoid getting H1N1.
—Yes, but in a word, we should care for our health at any time. ( )

A. in short
B. no doubt
C. in detail
D. in fact

心肺复苏的第一步骤是（）。

A.判断意识

B.高声呼救

C.拨打电话

D.将病员放平