用分散法制备混悬液加液研磨时,通常是()份药物加()份液体即能产生最大的分散效果。
参考答案:1;0.4-0.6
Kate is always late for class.She is not used to________up early in the morning.[ ]
A. get
B. getting
C. be got
D. gets
把标有“220V60W”和“220V25W”的甲、乙两盏灯串联后接在220V电压下,则: [ ]
A.两盏电灯的总功率等于85W
B.两盏电灯的总功率大于25W,小于60W
C.两盏电灯的总功率小于25W
D.乙灯的实际功率大于甲灯的实际功率