Illegal immigrants are considered by some to be an economic _____ on the country because they use services while paying almost no taxes.
Adrain正確答案
Bresponse
Cindicator
Dreform
答案與詳解
drain 作名詞指「消耗、負擔、流失」,economic drain 是固定搭配,意指對經濟的拖累。與後半句「使用服務卻幾乎不繳稅」的因果完全對應。
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