窗口將在 5秒后自動關閉.
名複: invaders
n.
同義參見:
以上來源於：《英漢大辭典》
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單選題
Taiwanese should preserve thousand-year-old trees in the high mountain, which are our vital biological __.
(A) heritages
(B) monuments
(C) immigrants
(D) invaders
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