gre,英語作文
文章分類：作文
你也會想看的：為國家奉獻的名言名句
篇一：英語gre范文
in fact many various emotional states give rise to certain patterns of electrical activity in the facial muscles and in the brain .
Some mountains were formed as a result of these plants crashing into each other and forcing up the rock at the plants margins.
Animal dung eiched the soil by providing nutrients for plant growth.
For example ,in 1986 one biologist pointed out the diversity of butterflies when he mentioned that he found 700 species within an hour's walk, whereas the total number on British island not exceed 66, and the whole of Europe supported only 321.
