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【简答题】

Section C (8 marks)
There once was a farmer who grew award-winning corn. Each year he entered his corn in the state fair(集市) 小题1:___ it won a blue ribbon.
One year, a newspaper reporter interviewed him and learned 小题2:______ interesting about how he grew it. 小题3:______ reporter discovered that the farmer shared his seed corn(粮种) with his neighbors.
“How can you afford to do that when they are entering their corn in competition小题4:______
yours each year?” the reporter asked.
“Why sir,” said the farmer, “don’t you know? The wind picks up pollen(花粉) from the ripening corn and spreads 小题5:_____ from field to field. If my neighbors grow bad corn, cross-pollination will gradually reduce the quality of my corn. If I am to grow good corn, I must help my neighbors grow good corn.”
He is fully aware 小题6:_____ the connectedness of life. His corn can’t improve 小题7:______ his neighbors’ corn also improves. 小题8:______ it is with our lives.

题目标签:小题花粉粮种
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参考答案:
参考解析:
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刷刷题刷刷变学霸
举一反三

【单选题】花粉引起的支气管哮喘属于

A.
Ⅳ型超敏反应
B.
Ⅰ型超敏反应
C.
Ⅲ型超敏反应
D.
非超敏反应
E.
Ⅱ型超敏反应

【单选题】具有正常花粉,给雄性不育系授粉,F1仍是雄性不育的是()。

A.
雄性不育系
B.
雄性不育保持系
C.
雄性不育恢复系
D.
以上三项都不是

【单选题】花粉入药的药材为

A.
菊花
B.
蒲黄
C.
西红花
D.
辛夷
E.
金银花