一位18岁女学生就诊时主诉:近一个多月来咳嗽,痰中时有血丝。消瘦并常感疲乏无力,午后潮湿,心悸,盗汗,食欲不振。对该患者的痰标本应选用的染色法是()。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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