单项选择题
David won't come to my wedding party ____ I send him an...
单项选择题David won't come to my wedding party ____ I send him an invitation.(
Hold on, please. I'll put you ____ to the manager.( )A...
单项选择题Hold on, please. I'll put you ____ to the manager.( )
混凝土搅拌机每罐需加入干砂190kg,若砂子含水率为5%,则每罐实际加的湿砂量是( )A.185kgB.19...
单项选择题混凝土搅拌机每罐需加入干砂190kg,若砂子含水率为5%,则每罐实际加的湿砂量是( )