关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 公告：维护QQ群：833371870，欢迎加入！公告：维护QQ群：833371870，欢迎加入！公告：维护QQ群：833371870，欢迎加入！ 2021-04-14 青书学堂: (单选题) His of the accident is different from the policeman's(本题2.0分) 青书学堂: (单选题) His of the accident is different from the policeman's(本题2.0分) 答案： 查看 举一反三 青书学堂: (单选题) 单选:设S={0,1},*为普通乘法,则< S , * >是( )。(本题1.0分) 青书学堂: (单选题) 单选:设,*为普通乘法,则[S,*]是( )。(本题1.0分) 青书学堂: (单选题) 单选20.充分就业是指（ ） (本题5.0分) 青书学堂: (单选题) 单选:设,S上关系R的关系图为 则R具有( )性质。(本题1.0分) 青书学堂: (单选题) Is the library _______ now? No, it's _______.(本题2.0分)
