Compared with ordinary coal, new, ’clean’ coals may generate power

admin2014-05-25 0

问题 Compared with ordinary coal, new, ’clean’ coals may generate power

选项 A、more cleanly and more efficiently.
B、more cleanly but less efficiently.
C、more cleanly but at higher cost.
D、more cleanly but much more slowly.

答案A // more cleanly and more efficiently

解析

转载请注明原文地址:https://jikaoti.com/ti/2JEYFFFM

雅思阅读

相关试题推荐

随机试题

最新回复(0)