The passage gives a general description of an invasive insect, HWA. It will take several different insects operating year-round

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问题 The passage gives a general description of an invasive insect, HWA.
It will take several different insects operating year-round to ______ .

选项

答案keep HWA in check

解析 最后一题多出现在文章末尾,根据题干中的信息词year-round定位Risky Busitles下的段落,在第三段第一句可找到答案。
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