Which of the following statements about Nebula is wrong?
A、Theplanetarynebulahastheshapeofabrightspotinthecenterofthetelescopeandaring-shapedgasshellaroundit.;
B、Planetarynebulaglowsbyitself.;
C、Adiffusenebulaisanirregularcloudofinterstellargasordust.;
D、Thediffusenebulacannotshine.
发布时间：2026-01-24 06:05:08
