【单选题】患者女,25岁,因不洁性交后出现白带增多及外阴瘙痒。入院后诊断为滴虫性阴道炎。该疾病白带的典型特点是
【单选题】患者女性, 25 岁,因不洁性交后出现白带增多及外阴瘙痒。入院后诊断为滴虫性阴道炎。该疾病白带的典型特点是
【单选题】对于电压比较器,当同相输入端电压大于反相输入端电压时,输出( )电平。
【简答题】对于电压比较器,当同相端电压大于反相端电压时,输出 电平,当反相端电压大于同相端电压时输出 电平。
【单选题】The dense black cumulonimbus clouds surrounding the eye of a hurricane are called ______.
【单选题】Cumulonimbus clouds are formed by().
A.
vertical air movements
C.
horizontal air movements
D.
any movement of moist air
【单选题】All of the following are associated with cumulonimbus clouds EXCEPT ______.
D.
tornadoes or waterspouts
【单选题】Cumulonimbus clouds are most likely to accompany a(n) ________ .