图文混排是word的特色功能之一，以下叙述中错误的是（）。
A、可以在文档中插入剪贴画
B、可以在文档中插入图形
C、可以在文档中使用配色方案
参考答案：C
Japan’s economy _______ in the past twenty years. No one knows how long it ______ before it regains its increase.
A．has been declining; will be
B．has declined; would be
C．had been in decline; would take
D．was on the decline; will take
写出镁条燃烧的现象及为什么在实验台上放一片石棉网？
