FirstFT: the day's biggest stories
Варвара Кошечкина (редактор отдела оперативной информации)
，这一点在新收录的资料中也有详细论述
Smaller difference here, but still a notable one: 691 / 494 = 1.4 for table/collection and almost 2x for indexes.
\(f\) is continuous (preimages of open sets are open),