Many countries are increasing their use of natural gas,wind and other forms of___.
问题描述:
Many countries are increasing their use of natural gas,wind and other forms of___.
A、source B、energy 选B怎么错了?
C、power D、material
原来是选A 已经解决了
答
理解一下词的意思吧
source 来源 energy 能量 power 功率,力量 material 材料,原料
清楚了吧,同学?