英语六级

单选题

A．By cutting a path all the way across the leave.
B．By eating only the stem of the plant.
C．By changing the plant' s chemistry.
D．By eating only at night.

参考答案：A进入在线模考
Except vein cutting How can the beetles avoid being poisoned by the plant?
细节题。根据Another is by cutting a path all the way across the leave to hold the flow of chemicals．Then they simply eat between the veins of poison．可知甲虫还可以通过切断整个叶片来阻止毒素的流动，只吃在有毒叶脉之间的叶片。因此，正确答案为A。

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