5.Supermarkets closed during World War II due to lack of refrigerators.
A.正确
B.错误
C.文中未提及
正确答案:B
解析:原文说:’Supermarket success continued during World War II, when thousands of small grocery stores had to close as their employees went off to war.’ 关闭的是小杂货店,且原因是员工参战,非因缺乏冰箱。
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