题目

 When you state your plan to improve the service of the hotel at the meeting, remember not to_____ any important details. A. bring out         B. let out              C. squeeze out        D. leave out 答案:D如图,抛物线的顶点为P(-2,2),与y轴交于点A(0,3).若平移该抛物线使其顶点P沿直线移动到点P′(2,-2),点A的对应点为A′,则抛物线上PA段扫过的区域(阴影部分)的面积为__________.
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