心脏骤停首选的治疗措施是 ()
A.心肺复苏
B.安置起搏器
C.开通静脉输液
D.通畅呼吸道
E.高浓度吸氧
参考答案:A
The sense of mistrust is compounded by smaller annoyances that leave the families feeling as though no one in authority cares about them.
A.offset
B.intensified
C.diminished
D.annulled
下面(a)、(b)两图分别表示比较自行车和摩托车运动快慢的两种万法。
图( a)表明:
图( b)表明: