如圖所示,陰影部分面積為():
A.6008.7439 B.6008.7438 C.6008.7437 D.6008.7436
如圖所示,粗線區(qū)域面積為():
A.14676.9772 B.14676.9773 C.14676.9774 D.14676.9775
如圖所示,y的長度為():
A.60.5339 B.60.5338 C.60.5337 D.60.5336