题目

矩形ABCD中，AB＝8，，点P在边AB上，且BP＝3AP，如果圆P是以点P 为圆心，PD为半径的圆，那么下列判断正确的是（    ）．(A) 点B、C均在圆P外；           (B) 点B在圆P外、点C在圆P内；(C) 点B在圆P内、点C在圆P外；  (D) 点B、C均在圆P内．  答案：C解析:略 If you have a job, ________ yourself to it and finally you'll succeed. [     ]A. do devote  B. don't devoteC. devoting  D. not devoting