题目

----- Do you go to ______ church every Sunday?    ----- Yes. I believe _______God blesses me all _____ time. A. the;/; the       B. / ; /; /         C. a; /; the          D. /; /; the 答案：D 解析: 略如图，已知点A在双曲线y=上，且OA=4，过A作AC⊥x轴于C，OA的垂直平分线交OC于B，则△AOC的面积=    ；△ABC的周长为    ．