选择题：The boy __________ the dog with a thick stick but

题目内容：

The boy __________ the dog with a thick stick but the dog did not yield.(本题3.5分)

A、 came at
B、 came with
C、 won over
D、 won at

参考答案：

By the end of 2020 China _____ much stronger and r

By the end of 2020 China _____ much stronger and richer. ( )(本题2.5分) A、 is becom

一般来说，无差异曲线是一条（）选择一项：A. 向右上方倾斜的曲线B. 是一条垂线C. 是一条水平线D. 向右下方倾斜的曲线

边际成本曲线与平均成本曲线的相交点是（）选择一项：A. 边际成本曲线的最高点B. 平均成本曲线的最低点C. 边际成本曲线的最低点D. 平均成本曲线下降阶段

Which is not the expression of positive attitudes toward other people?A.gracious

3.组建战区联合作战指挥机构，健全军委联合作战指挥机构，是全面实施改革强军战略的重要部署。要推进领导掌握部队和高效指挥部队有机统一，形成军委管总、战区主建、军种