Solar Power The sun is【T1】______. It【T2】______. People【T3】______ to【T4】______. Active solar energy【T5】______ to【T6】_____

admin2018-03-29  31

问题     Solar Power
    The sun is【T1】______. It【T2】______. People【T3】______ to【T4】______.
    Active solar energy【T5】______ to【T6】______, which【T7】______, computers and televisions. Passive solar energy【T8】______. Instead,【T9】______. For example,【T10】______. Then【T11】______.
    Although【T12】______, solar power【T13】______because【T14】______. Furthermore,【T15】______.
【T14】

选项

答案it can be expensive to build a building using passive solar technology

解析
转载请注明原文地址:https://jikaoti.com/ti/fvaMFFFM
0

最新回复(0)