下述哪项不是低钾周期性瘫痪的诱因 ["A.饱餐","B.过度疲劳","C.寒冷","D.低钠饮食","E.大量输入葡萄糖"]
把空载变压器从电网中切除,将引起()。 ["A、电网电压降低;","B、过电压;","C、过电流;","D、无功减小。"]
溶脲脲原体(U.urealyticum)
性接触传播的支原体有() ["溶脲脲原体","人型支原体","生殖器支原体","肺炎支原体","穿透支原体"]
变压器铭牌上的额定容量是指()功率。 ["A、有功;","B、无功;","C、视在;","D、最大。"]
支原体(mycoplasma)