保护接地、接零线（PE线）的颜色是（）。
A、黑色
B、淡蓝色
C、黄绿双色
参考答案：C
Do you want __________ with me?
A．go shopping
B．to go shop
C．to go shopping
D．going shopping
Mrs Taylor has ____ 8-year-old daughter who has _____ gift for painting-she has won two
national prizs. [ ]
A. a; a
B. an; the
C. an; a
D. the; a
