下列钢种,属于合金工具钢的是:()。A.9Mn2V B.20 C.40 D.45Mn 发布时间:2020-01-06 17:38 │ 来源:www.tikuol.com 题型:单项选择题 问题: 下列钢种,属于合金工具钢的是:()。A.9Mn2VB.20C.40D.45Mn
题型:单项选择题 一How long has Tom _______ Nancy? 一I don’t know. And I even didn’t know they ______ .A.married to:got married B.married;married to C.been married to;got married D.been married;got married 查看答案
题型:单项选择题 读我国某城市气候资料统计图,回答下列各题:小题1:关于该城市气候特点的叙述,正确的是( )。A.冬长夏短,气候严寒B.降水丰富,主要集中于夏半年C.终年炎热干燥D.冬季多雨,夏季少雨小题2:该城市的气候类型是( )。A.热带雨林气候B.温带大陆性气候C.亚热带季风气候D.高原山地气候 查看答案