考博考试

【单选题】 However, at times this balance in nature is ______, resulting in a number of possibly unforeseen effects.
A．troubled
B．disturbed
C．confused
D．puzzled

网考网参考答案：B
网考网解析：
[解析] A项troubled意为“麻烦，困扰，打扰”；B项disturbed意为“打扰，打乱，打破”；C项confused意为“困惑，迷惑不解”；D项puzzled意为“迷惑，窘困”。根据句子主语部分this balance in nature(大自然的这种平衡)提示，应选B项。 查看试题解析出处>>