【单选题】Sometimes words alone were not enough to _________pupils along the path of knowledge
【简答题】根据黄瓜开花与结果的图,结合所学知识,分析说明: ①黄瓜属于雌雄同株、异花传粉的植物.黄瓜花是单性花(即一朵花中只有雄蕊或只有雌蕊).图A中,黄瓜花中只含有雄蕊,不能结果实,叫______花. ②图C中的黄瓜是图B中的______发育而来的,它的果实中含有大量的种子,是因为______. ③黄瓜是双子叶植物,其种子内的营养物质贮存于______中. ④很多谚语是我国劳动人民在农业生产中总结出来的自...
【简答题】Swimming alone ____ be ____ erous. Do be careful. A. need, highly B. may, high C. can highly D. can high
【单选题】Do you live alone or with your family?
【单选题】Do Americans like being alone?
B.
They like being alone.
C.
The writer doesn't say.
【单选题】下列农产品经常被人们食用,其中属于果实的是 [ ]