患者70岁,咳嗽咳痰,痰液黏稠不易的答案
患者70岁,咳嗽咳痰,痰液黏稠不易咳出,下列措施错误的是( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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