多歧聚伞花序、单歧聚伞花序、二歧聚伞花序都属于( )花序。
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The goals__________ he had fought ail his life no longer seemed important to him.
A. after which
B. with which
C. for which
D. at which
植物组织有哪几类？说明它们的形态特点、分布和功能。
豆科植物可分为哪几个亚科？列表比较几个亚科之间的异同点。
According to the passage，what is“migration”？
A. Moving from one place to another with the season．
B. Living in burrows in winter．
C. Travelling in the winter months．
D. Leaving one’S own country for another．
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