A-A+

A.They were able to fly it in the air.B.They w

2022-08-05 17:44:51 问答库 阅读 170 次

问题详情

A.They were able to fly it in the air.
B.They were able to stay up in the air for half an hour and more in the machine.
C.They were able to carry travelers.
D.They were able to fly in around Dayton.请帮忙给出正确答案和分析,谢谢!

参考答案

正确答案:B

考点: