【单选题】—What kind of movies do you like? —I like ____________, because I can learn a lot about history. [ ]
【判断题】1982年后中国每四年举办一次全国少数民族传统体育运动会。( )
【单选题】I like watching ________ because I can learn a lot about nature, history and real-life events from them.
【判断题】放大器常采用分压式偏置电路,主要目的是为了稳定静态工作点。
【单选题】本工程卫生间地面混凝土楼板卷起()mm高C20混凝土防水卷沿。