乳化剂的应用是()
A.与渗透剂混合形成可以被水清洗的混合物
B.有助于显像剂的吸收作用
C.提高渗透剂渗入不连续性的渗透性
D.消除虚假显示
参考答案:A
______ the program, they have to stay there for another two weeks. [ ]
A. Not completing
B. Not completed
C. Not having completed
D. Having completed
对未装计费()的临时用电者,应按用电设备容量、使用时间、用电类别计收电费。
A.电流表
B.电压表
C.功率表
D.电能表