单项选择题
A.455.5309B.16512.9964C.910.9523D.261.0327
A.X =110.3237、Y =242.5747B.X =113.3233、Y =242.5747C.X =220.5747、Y =135.3233D.X =113.3233、Y =135.3233
A.15.32B.9.55C.7.43D.12.76
图中阴影部分的面积为:()。
A.439.27B.440.15C.532.48D.481.35
微信扫一扫,加关注免费搜题