静电除尘器必须具备()电场才能有效工作。 ["高压、直流、不均匀","高压、直流、均匀","高压、交流、不均匀","肩压、交流、均匀"]
典型嗜铬细胞瘤在() ["T1WI呈低信号,T2WI呈中等高信号","T1WI呈高信号,T2WI呈低信号","T1WI呈低信号,T2WI呈中等信号","T1WI及T2WI均呈高信号","T1WI及T2WI均呈低信号"]
治疗血友病B的出血输注凝血酶原复合物应:() ["每8h一次","每12h一次","每天一次","隔天一次","每周两次"]
()对吹吸式排风罩的极限流量比影响不大。 ["吹风口法兰边全高","吹风口间距与吹风口高度之比","吸风口法兰边全高与吹风口高度之比","污染气流速度与吹风口出口流速之比"]
刘某,男,39岁,性情素喜抑郁,久患便秘,欲便不得,伴胸胁胀满,脘腹胀闷,食后尤甚,嗳气频作,舌苔略腻,脉弦。其常用方剂为(). ["A.柴胡疏肝散","B.四逆散","C.六磨汤","D.大承气汤","E.木香顺气丸"]
降水算法要求用来导出降水率的反射率因子的取样位于()以下的区域。