【单选题】本段文字在说明人类语言采用声音作为手段的优点和缺点时运用的说明顺序是:
【单选题】“Apple is targeting _______ who are serious about the news and willing to pay for it," said Michael Goodman, a research director at Strategy Analytics.
【简答题】本文的说明顺序是什么?请结合文章内容作简要概括。
【单选题】把复杂问题简化成一个因素的方法叫做?()
【判断题】绘制墙体轮廓线按规定应该用粗实线,平、立面图次要建筑轮廓应该用细实线画。