心脏骤停的体征是（）
A.意识丧失
B.颈、股动脉搏动消失
C.心音消失
D.呼吸停止
E.皮肤苍白或明显发绀
参考答案：A, B, C, D, E
After graduating from college, I took some time off to go traveling, turned out to be a wise decision.
A．that
B．which
C．when
D．where
创业培训的模式有哪些？
