2020年9月英语四级真题及参考答案【完整版】四六级试卷采用多题多卷形式，大家核对答案时，请找具体选项内容，忽略套数。无忧考网搜集整理了各个版本(有文字也有图片)，仅供大家参考。【网络综合版】听力：Section ANews Report 1A NASA satellite orbiting over Portugal took photographs that reveal the effects of pollution from ships. One of the photos shows a thin film of clouds above the brilliant blue of the North Atlantic, cut by white lines of thicker clouds that look like scars.NASA officials explained those thicker clouds are signs of ship traffic below. 【Q1】When ships pow
