除了成本控制，A10 的身世也决定了它的品质下限。它其实还有一个名字：B03X。
For a second time, Jim Lovell had brought the world together as one. The first time it had been for Earthrise, the second would be to witness his fight to survive.
。业内人士推荐safew官方版本下载作为进阶阅读
习题链接：LeetCode 853. 车队
for each candidate in list of candidates
"It's also an opportunity for us, maybe, to get our suits up there before the astronauts actually have to wear them on the surface of the Moon ... this is all going to help take down risk for a subsequent landing."