穿刺性胸外伤濒死者，且高度怀疑存在心脏压塞，应在急诊室实施开胸探查。
参考答案：对
_____ days went by, he didn't succeed in anything he had planned. [ ]
A. With
B. When
C. As
D. While
双级流量控制活门的电源是（）
A、ESS BUS
B、左发是ESS BUS，右发是MAIN BUS
C、MAIN BUS
g he had planned. [ ]