交流充电特点是充电功率较小，电池充电时间较长，可充分利用低谷时段充电。
查看答案
慢速充电系统主要是由：
A. 充电桩
B. 慢充口
C. 慢充线束
D. 高压控制盒
If I ____ plan to do anything I wanted to ,I'd like to go to Tibet and travel through as much of it as possible.
A. would
B. could
C. had to
D. ought to
You____ to attend the meeting, but you didn't.
A. should come
B. would have come
C. came
D. should have come
Can you imagine how____ about it ?No, I can't.
A. could they know possibly
B. could they possibly know
C. they could possibly know
D. possibly they could know
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