题目内容
【题目】(2018兰州改编)In summer, food will go bad quickly ________ we put it into a fridge.
A.ifB.unlessC.becauseD.while
【答案】B
【解析】
略
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题目内容
【题目】(2018兰州改编)In summer, food will go bad quickly ________ we put it into a fridge.
A.ifB.unlessC.becauseD.while
【答案】B
【解析】
略