下列是粗盐提纯的主要操作,其中正确的是 ( )
A:称量5.0g粗盐
B:量取10mL水
C:过滤
D:蒸发滤液
下图为1834年前后主要进口货物的税率对比,造成图中现象出现的原因是( )
My parents
My parents work in a show factory. They get up at five thirty. They first get breakfast ready. Then they go to work by bus. They work there from eight to five. They come home at about six and prepare supper for us. Mother washes clothes in the evening. Father often makes toys for us. They are busy all day.
仔细阅读,判断句子正误。