题目

Have you ever heard the old saying, “Never judge a book by its cover.”? This is a good rule to follow when trying to judge the intelligence of others. Some people have minds that shine only in certain situations. A young man with an unusual gift in writing may find himself speechless before a pretty girl when he speaks. He may not be able to find the right words. But don’t make the mistake of thinking him stupid. With a pen and paper, he can express himself better than anybody else.    Other people may fool you into overestimating(过高估计) their intelligence by putting up a good 16．如图，△A1BC一个内角的平分线和一个外角的平分线相交得到点A2，△A2BC的内外角平分线相交，得到点A3，…，用∠A表示∠A2015．