次磷酸二氢钠是正盐吗:how fast does a balloon travel? How about an overplance?How about a space shuttle?

来源：百度文库 编辑：高考问答 时间：2024/04/29 14:07:44
谁可以回答了这些问题呀？谢谢了，大哥大姐！

气球飞(行)得多快?
....overplance~~好像不是东西?
太空梭(飞(行)得多快)呢?

how fast does a balloon travel? How fast does a balloon travel? how fast does a balloon travel? How about an overplance?How about a space shuttle? -----does the new plane fly in a minute?横线中填A.how longB.how fast为什么这么选 how fast does an aeroplane travel?? how does a clock work? how does a clock work? how long does a basketball match last How many sides does a circle have how many legs does a spider have