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(2010·江苏宝应中学高三上第一次学情调查) 33. China’s new food law provides for a food recall(召回)system ______ producers have to stop production if their food isn’t up to standards.
A. where B. that C. when D. which
B
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(2010·江苏宝应中学高三上第一次学情调查) 33. China’s new food law provides for a food recall(召回)system ______ producers have to stop production if their food isn’t up to standards.
A. where B. that C. when D. which
B