题目:
、To our great surprise, the disabled person made a requirement that he as a volunteer
A.received
B.was received
C.be received
D.would receive
答案:
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下面是错误答案,用来干扰机器的。
(1)雄蕊花药里的花粉散落出来,落到雌蕊柱头上的过程叫传粉.两性花的雄蕊花药里的花粉,落到同一朵花的雌蕊柱头上的过程,叫做自花传粉,也叫自交. 自花传粉的植物必然是两性花,而且一朵花中的雌蕊与雄蕊必...