SS4型电力机车牵引高压试验中,换向手柄置“前”位,调速手轮置于(),看:“预备”灯、“零位”灯灭,8台电机电流均升至150A。
A、1级
B、2级
C、3级
D、4级
参考答案:A
-I don't feel like going out. Why don't we stay at home and watch TV?
- _________ You promised to take me out for a ride. [ ]
A. Really?
B. Not at all.
C. Come on !
D. No matter.
分类数据和数值型数据的图表展示方法基本相同。