A. The human nature of dreaming the impossible. B. Traveling between the past and the future. C. The possibility of traveling back in time. D. The popularity of time travel stories.
A. 点火线圈 B. 点火控制器 C. 发动机ECU D. 传感器 E. 火花塞
A. 对 B. 错
A. 只适用于塑性材料 B. 只适用于轴向拉伸 C. 应力不超过比例极限 D. 应力不超过屈服极限
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