单选题为避免低氧血症气管内插管时间不应超过()A50sB40sC30sD20sE60s
单选题
为避免低氧血症气管内插管时间不应超过()
A
50s
B
40s
C
30s
D
20s
E
60s
参考解析
解析:
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单选题为避免低氧血症气管内插管时间不应超过()。A50sB40sC30sD20sE60s
50s
40s
30s
20s
60s