如图所示当把瓶内空气抽出后听不到声音,本实验说明______. 发布时间:2017-04-26 18:39 │ 来源:www.tikuol.com 题型:问答题 问题: 如图所示当把瓶内空气抽出后听不到声音,本实验说明______.
题型:问答题 用所给动词的适当形式填空。1. He is _______ (point) at the little red school.2. Are you________(have) fun?3. Jenny is not ___________(look) out the window.4. I _______ (see)a little pink pig.5. What _______(do) she see? 查看答案