管排气时插入深度()
A.7~10cm
B.10~15cm
C.15~20cm
D.19~20cm
E.21~23cm
参考答案:C
I ________ you would come so early.
A. am not expecting B don’t expect C. didn’t expect D. not expect
可引起头痛、头晕、耳鸣、腹泻、恶心、视物模糊等,严重者可晕厥或猝死
A.利多卡因B.奎尼丁C.普罗帕酮D.普萘洛尔E.胺碘酮