填空题

The basic principles applied to natural-gas vehicles are quite different from those applied to gasoline-powered vehicles.

【参考答案】

N

<上一题目录下一题>

热门试题

问答题

宿舍生活有时会出现不和谐的情况2. 一个和谐宿舍生活的必要性3. 如何创造和谐的宿舍生活On a Harmonious Dormitory Life

填空题

Natural gas is mainly made up of methane and other hydrocarbon gases.