However, at times this balance in nature is ______, resulting in a number of possibly unforeseen effects.

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问题 However, at times this balance in nature is ______, resulting in a number of possibly unforeseen effects.

选项 A、confused
B、disturbed
C、troubled
D、puzzled

答案B

解析 近义词辨析。confuse意为“搞乱,混淆”,指把事物混淆或弄乱,或由于混淆而糊涂,如:Don’t confuse Austria with Australia.(不要把奥地利与澳大利亚弄混淆了。)disturb意为“打乱,扰乱”,通常表示一种用力扰乱或搅混的意思,它还常表示影响确定的,安排好的路线、计划、增长或发展,如:disturb the peace(扰乱治安);trouble 意为“打扰,麻烦”,普通用语,多指由于某种原因引起对方苦恼、忧虑或麻烦等,如:Can I trouble you to shut the door?(我能麻烦你关上门吗?) puzzle 意为“迷惑,困惑”,指因情况错综复杂而使人感到迷惑不解,如:This letter puzzles me.(这封信使我迷惑不解。)原句是指自然平衡的规律被打乱,所以选B)。
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