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【单选题】
我国古代劳动人民积累的丰富农业生产经验,至今许多仍在实践中应用。下列叙述与植物激素作用无直接关系的是 ( )A.
适时打顶去心，可促棉株开花结实。 ( 据《农桑辑要》 )
B.
肥田之法，种绿豆最佳，小豆、芝麻次之。 ( 据《齐民要术》 )
C.
正月种，五月收获后，根茬长新稻，九月又成熟。 ( 据《》 )
D.
新摘未柿，每篮放木瓜两三枚，得气即发，涩味尽失。 ( 据《格物粗谈》 )
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A.
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B.
They treated the Indian groups well.
C.
They came across some Indian groups.
D.
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A.
brain will be replaceable by the end of the 21st century
B.
the entire body can be replaced by 2030
C.
people will be able to get a fully working replacement body part by 2020
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people will be able to have a new face and skin by 2020
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A.
Regeneration is a process discovered centuries ago.
B.
How severe a wound is determines the strength of the current flowing around it.
C.
The lizard, unlike man, is a less-developed animal.
D.
Scientists have lately found that a lizard will grow a new tail if the old one is broken off.
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