If a cat comes too close to its nest, the mockingbird initiates a set of actions to protect its offspring.

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问题 If a cat comes too close to its nest, the mockingbird initiates a set of actions to protect its offspring.

选项 A、hastens
B、triggers
C、devises
D、releases

答案B

解析 题意:如果有猫靠近嘲鸫窝时,嘲鸫会采取一系列的措施来保护它们的幼鸟。hastens“催促,加速”:triggers“引发,触发”;devises“发明,图谋”;releases“释放,发表”。根据一般常识,当有危险的动物靠近嘲鸫窝时,嘲鸫会采取一系列的措施来保护它们的幼鸟。由此推断initiates与triggers意思相似,意为“发动,发起”,故选B。
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