The Sun and the rest of solar system formed about 4.5 billion years ago from a c

游客2023-12-09 72

问题 The Sun and the rest of solar system formed about 4.5 billion years ago from a cloud of collapsing hydrogen gas.

选项

答案 ∧solar—the

解析表示世界上独一无二的事物，需用定冠词。此处指太阳系。另外还有宇宙the universe、the Milky Way银河等。

转载请注明原文地址:https://www.tihaiku.com/zcyy/3259407.html

相关试题推荐

随机试题

最新回复(0)

AftertheWarofIndependence,Americansdesignedanewsystem.Whatit?A、Feudal