第3题: [填空题]While playing back Karaoke, if there is acoustic feedback, we should turn the micro phone volume down and put the microphone farther away from the speaker. 参考答案:Y 答案解析:这是有关playing back Karaoke的,故可定位于Karaoke Playback这个小标题下的内容。根据(Ⅱ) 中第2点下的第二个黑点后的内容:“If acoustic feedbac
A. to move to a big city B. not to move to big city C. not to move to a big city without thinking about the problems there D. not to think too much about the problems before they move at a big city 参考答案:C 答案解析:根据本文最后一句,作者告诫人们在去大城市之前,认真思考一下那里的问题,故 C为正确答案。