The main idea of the first paragraph is ______. [br] Plants with roots appeared

游客2025-07-31 52

问题 The main idea of the first paragraph is ______. [br] Plants with roots appeared about ______.million years ago.

选项 A、430
B、300
C、330
D、100

答案 C

解析最先出现的植物在4亿3千万年前，1亿年后，植物开始生根，也就是3亿3千万年前。

转载请注明原文地址:http://tihaiku.com/zcyy/4184958.html

相关试题推荐

随机试题

最新回复(0)

Themainideaofthefirstparagraphis______.[br]Plantswithrootsappeared