从能源的形成和来源划分,来自地球内部的能源有[ ]
A.石油和天然气
B.核能
C.地热能
D.潮汐能
答案:B
Jess was sad and her friend helped her ________the first awful weeks after her husband Bill died.
A.break through
B.break down
C.get through
D.get rid of
在自动空调系统中,空调电脑通常与哪个部件集成为一个总成部件?()
A.压缩机继电器
B.空调操作面板
C.车身电脑
D.保险丝/继电器模块