单项选择题
A.气胸 B.二氧化碳潴留 C.瘀斑 D.胃充盈
A.15s B.20s C.25s D.30s
A.80-85% B.90% C.90-95% D.100%
A.34.4°C B.34.6°C C.35.0°C D.35.6°C
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