A、血尿
B、阴道流血多
C、肛门坠胀感
D、子宫底上升
Decision on whether the message is right or wrong should at least come after
_____what the message is.
A、puttingout
B、turningout
C、workingout
D、runningout
使用人工呼吸机时，若患儿吸氧浓度为100%，其持续时间应为（）
A、＜6小时
B、7～8小时
C、9～10小时
D、11～12小时
Students should_____their own interests as well as do their schoolwork.
A、persuade
B、pursue
C、persist
D、proceed
A、半坐卧位
B、头低位
C、胸膝卧位
D、抬高下肢15-30°