题目

These clothes of the latest style are on sale this weekend, with another 10% discount for ______ customers, for example, members of our shop.   A. regular          B. ordinary           C. general            D. usual   答案:A 解析: 略某学生在体育场上抛出铅球,不计阻力,其离手后运动轨迹如图所示.则关于各点速度和加速度说法中正确的是(  ) A、vB>vCB、vA>vDC、各点加速度不同D、各点加速度相同
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