The engine acts as the power unit located normally at the ______ of the car.
查看答案
The engine is the ________ of an automobile .
The engine burns fuel to produce _______ .
The auto ________ is composed of body shell, doors, windows, body trim, interior trim and seats.
爱因斯坦模型认为所有原子的振动频率都相同。
A. 对
B. 错
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