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大丽花栽培在南方湿热地区,往往生长不良,花序变短,花朵变小,其原因是()

单选题
2021-09-01 23:23
A、机械混杂
B、栽培环境不适
C、生物学混杂
D、繁殖方法不当
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正确答案
B

试题解析

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