A-A+

Generally speaking how many stages are there i

2022-08-01 23:33:08 问答库阅读 168 次

问题详情

Generally speaking how many stages are there in a multistage rocket？
A．Two.
B．Three.
C．Four.
D．Five.请帮忙给出正确答案和分析，谢谢！

正确答案：C
解析：表面上看应该选B。但仔细分析一下，发现第四段又将火箭分成二级，所以应该选C项。