听力原文:W:I'm afraid we are going to miss the 4-o'clock flight.
M:Don't worry.We can get our tickets changed for this evening.
Q:What does the man suggest they should do?
(14)
A.Check the timetable.
B.Set off earlier.
C.Get on a later flight.
D.Cancel the trip.
第1题
成人正常呼吸频率为
A.10次以下/分钟
B.10~15次/分钟
C.16~22次/分钟
D.23~30次/分钟
E.30次以上/分钟
第3题
正常成人安静状态下的呼吸频率为()。
A.18~22次/分钟
B.20~24次/分钟
C.22~26次/分钟
D.16~20次/分钟
E.17~23次/分钟
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