—I could have arrived much earlier, but I ____ in the traffic.

—What a pity![ ]

A. would be caught

B. was caught

C. has been caught

D. had been caught

某车祸病人，出血＞1500ml，心音弱，呼吸微弱、不规则，血压测不到，无尿，皮肤黏膜出现紫斑。

对此病人首要的抢救措施是______

A．应用利尿剂
B．迅速补充血容量
C．纠正酸中毒
D．应用强心药
E．手术止血