下列对生物进化总体趋势的描述不正确的是（　　）

读夏至日光照图，完成以下问题。

There are ________ approaches to English teaching. But not all of them are equally efficient for our Chinese students.

图为青州蜜桃切面图，图中所示结构a是由？发育而来的（　　）

Thanks to the robots, the human reporters do not have to spend a lot of time ________ boring numbers and information.