输入
输出
下列各句中,划线的词语使用恰当的一句是( )
____My mum doesn't go to work on Sundays .
____She goes swimming on Sundays .
____I go to school on Mondays.
____Do you go to work on Mondays .
____Does Sam play football on Saturdays .
粗盐提纯的操作步骤如图,相关说法错误的是( )
判断对错.
0.535353是循环小数.