北京市门头沟区斋堂镇爨底下村是我国首批公布的国家级历史文化名村。
参考答案：对
It was proved that the problem __ partly in the air pollution.
A．lies
B．lied
C．lay
D．laid
暖和：炎热( )
A．贵的：昂贵的
B．不规则：规则
C．简单：平凡
D．僻静的：偏僻的
