高压配电箱是新能源汽车集中高压配电设备，是动力电池与个高压设备的电源和信号传递的桥梁，
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当导轨上行驶的汽车数量少时，传输效率将会非常低。
A. 对
B. 错
Now ___ your turn to recite the text.
A. there is
B. there comes
C. comes
D. has come
Not a single mistake ____ in the dictation yesterday.
A. did he make
B. made by him
C. he made
D. he had made
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