第30题:[单选题]Snow on top of deicing or anti-icing fluids A.need not be considered as adhering to the aircraft B.must be considered as adhering to the aircraft. C.must be considered as adhering to the aircraft, but a safe takeoff can be made as it will blow off. 参考答案:B
第31题: [单项选择]滴虫性阴道炎带下的特点是() A. 黄绿色脓性 B. 匀质稀薄状 C. 赤白带相兼 D. 白色豆腐渣样 E. 灰黄色泡沫样 参考答案:E