问题描述：
新概念3第九课的问题
The radio would signal the rate at which the ball was slowed down and scientists would be able to calculate hoe dence the atmosphere is .
这句话中,“the ball was slowed down ”是虚拟语气的用法吗?
可那篇文章描写的好像都是将来时态的内容。开篇第一句是“By now,a rocket will have set off on its thirty million mile trip to Mars.”
如果是虚拟语气，那这个又是虚拟语气的哪种用法？
The radio would signal the rate at which the ball was slowed down and scientists would be able to calculate hoe dence the atmosphere is .
这句话中,“the ball was slowed down ”是虚拟语气的用法吗?
可那篇文章描写的好像都是将来时态的内容。开篇第一句是“By now,a rocket will have set off on its thirty million mile trip to Mars.”
如果是虚拟语气，那这个又是虚拟语气的哪种用法？
问题解答：
我来补答展开全文阅读