倒蜡泵开泵前要转好相应的倒蜡流程,打开()阀,并用()贯通,确认畅通时才能开泵. 发布时间:2017-11-12 05:20 │ 来源:www.tikuol.com 题型:填空题 问题: 倒蜡泵开泵前要转好相应的倒蜡流程,打开()阀,并用()贯通,确认畅通时才能开泵.
题型:填空题 This book tells ______ life story of John Smith, who left ______ school and worked for a newspaper at the age of 16.A. the; the B. a; the C. the; 不填 D. a; 不填 查看答案