单选题
Were animal parents judged by human standards, the cuckoo would be one of nature"s______ creatures, blithely laying its eggs in the nests of other birds, and leaving the incubating and nurturing to them.
A、
mettlesome
B、
industrious
C、
conscientious
D、
feckless
【正确答案】
D
【答案解析】
解析:句意:如果按人类的标准来评判动物亲代的话,杜鹃无疑是自然界中比较缺乏责任心的一种动物,它们漫不经心地将蛋产于其他鸟类的巢内,并将孵化和喂养的任务留给它们。mettlesome“精神抖擞的,有生气的”;industrious“勤奋的”;conscientious“认真的,尽责的”;feckless“无效的,不负责任的”。根据句意,D为答案。
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