选择题：推到最终境界线的台阶所组成的空间曲面称为　A.边帮B.最终边帮C.边坡D.侧帮

单选(2分) Dick lived in England. One day in January he said to his wife, "I.m going

单选(2分)下列关于马克思主义的基本立场表述有误的是？得分/总分A.一切为了人民，一切依靠人民B.全心全意为人民谋利益C.始终站在无产阶级和人民大众的立场上D.

【判断题】项目经理不应该把项目的权力下放给项目团队成员。选择一项：对错

单选(2分)14. My absent-minded teacher loses his keys, his book and his chalk almost

矿石运搬时，采用从落矿地点到运输巷道全程靠自重溜放矿石的方法为重力运搬，下列选项适合重力运搬的是（ ）A.开采急倾斜薄或极薄矿脉B.开采倾角为45°的薄矿脉；C