题目内容

At the meeting, designers from their company __________________________________________ renderings (阐明了多种评估的方法).

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After the energy crisis, they made up their minds to _ an oilfield that could _ enough oil for people in their own country to consume in the near seabed (勘探；生产).

汽车用蓄电池电压一般是多少伏？

A. 12
B. 14
C. 28
D. 24

蓄电池按照大的类型上一般有哪几种形式？

A. 免维护蓄电池
B. 普通蓄电池
C. 干荷蓄电池
D. 启动蓄电池

起动机不需要保养。

A. 对
B. 错