Yes, it is. The EUPL contains a unique compatibility clause and provides for a list of compatible copyleft licences. The GPL is one of them.
Not yet, but it's in the works. Join the waitlist at the bottom of this page to be the first to know when it launches.
，这一点在17c 一起草官网中也有详细论述
Оказавшиеся в Дубае российские звезды рассказали об обстановке в городе14:52
Фото: Kamal Kishore / Reuters