In summer milk will quickly go bad_____ it is put into a fridge.A．thoughB．unles
题型：不详难度：来源：
In summer milk will quickly go bad_____ it is put into a fridge.| A．though | B．unless | C．because | D．once |
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答案
| B |
解析
试题分析：句意:在夏天，牛奶很快就会变质，除非把它放在冰箱里。though虽然，尽管，引导让步状语从句；unless 除非，如果不，引导条件状语从句；because 因为，引导原因状语从句；once曾经，一旦，一次。根据句意可知选B。 |
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