104型制动机的紧急制动波速最大约为（）。
A.160m／s
B.180m／s
C.190m／s
D.210m／s
参考答案：D
挑出错误并改正。
( ) 1. Tom went to school every day. _______________
A B C D
( ) 2. What does she do yesterday? _______________
( ) 3. Yesterday I shoped in many shops on Wangfujing Street. _______________
( ) 4. Li Ming is arriving to home from Beijing. _______________
男性，48岁，心悸1小时，查体：BP60／20mmHg，神志淡漠，心电图示室性心动过速，此时应立即（）
A.利多卡因静脉注射
B.胺碘酮静脉注射
C.维拉帕米静脉注射
D.非同步直流电复律
E.同步直流电复律
