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Pollen, a powdery substance, which is produced by flowering plants and conta
Pollen, a powdery substance, which is produced by flowering plants and conta
游客
2024-01-02
67
管理
问题
Pollen, a powdery substance, which is produced by flowering plants and contains male reproductive cells, is usually carried from plant to plant by insects or birds, but some plants rely on the wind to carry their pollen. [A] Wind pollination is often seen as being primitive and wasteful in costly pollen and yet it is surprisingly common, especially in higher latitudes. [B] Wind is very good at moving pollen a long way. [C] The drawback is that wind is obviously unspecific as to where it takes the pollen. [D] It is like trying to get a letter to a friend at the other end of the village by climbing onto the roof and throwing an armful of letters into the air and hoping that one will end up in the friend’s garden.
Look at the four squares [■] that indicate where the following sentence could be added to the passage. If a number of people in the village were throwing letters off roofs, your friend would be bound to get one.
Where would the sentence best fit?
选项
答案
C
解析
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