电容式电压互感器例行维修项目()。
A.检查及紧固一次和二次引线连接件
B.油位检查
C.红外测温
参考答案:A
汽车由北京驶往相距120千米的天津,它的平均速度是30千米/时,则汽车距天津的路程s(千米)与行驶时间t(时)的函数关系及自变量的取值范围是 [ ]
A. s= 120 - 30t(0≤t≤4)
B. s=30t(0≤t≤4)
C. s =120 -30t(t >0)
D. s=30t(t =4)
—Would you please help me with my drawing skills?
— _________. You can come to my studio every Saturday.
A.That’s all right
B.No problem
C.No, thanks
D.Quite well