题目

用直尺和圆规作一个角等于已知角，如图，能得出∠A′O′B′=∠AOB的依据是（ ）. A . SAS B . AAS C . ASA D . SSS 答案：D单项选择。— ______ minutes do you ride to school? — About twenty minutes. [     ]A.How muchB.How often C.How many D.How long