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Orchid seeds take (up to) eighteen months to mature (before they) sprout, and th
Orchid seeds take (up to) eighteen months to mature (before they) sprout, and th
游客
2025-02-09
41
管理
问题
Orchid seeds take (up to) eighteen months to mature (before they) sprout, and the young plants (may need) another two years to (reach at) the flowering stage.
选项
A、up to
B、before they
C、may need
D、reach at
答案
D
解析
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