[求助]11th OG 阅读115题

dogshead

这题的关键点在 is there enough mass in it for the mutual attraction of its constituents to bring the expansion to a halt?

从这句话我们可以理解到：物质越多越产生mutual attraction ，越不会膨胀。

3个个氢原子是临街点，小于3个肯定膨胀下去了

ccorange2013

or is there enough mass in it for the mutual attraction of its constituents to bring this expansion to a halt其实已经说明了宇宙停止的条件是有更多的物质，所以比3个hy少的情况下得方向自然是回继续膨胀