题目

You______ park here! It is an emergency exit! A . wouldn't B . needn't C . mustn't D . couldn't 答案：C如图，Rt△ADB中，∠D=90°，∠A=32°，C为边AD上一点，C与点A、D不重合，设∠ACB的度数为x，则x的取值范围是 °．