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6、 (2011年青島聯(lián)合模擬)China’s new food law provides for a food recall system________producers have to stop production if their food isn’t up to standards.

A.where                          B.that

C.when                           D.which

6、解析:選A。考查定語(yǔ)從句。句意:中國(guó)新的食品法規(guī)定了食品召回制度,即如果食品達(dá)不到標(biāo)準(zhǔn),生產(chǎn)者就必須停止生產(chǎn)。先行詞為a food recall system,定語(yǔ)從句為producers

 have to stop production if their food isn’t up to standards (in the food recall system),故選A。

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 (2011年青島聯(lián)合模擬)China’s new food law provides for a food recall system________producers have to stop production if their food isn’t up to standards.

A.where                          B.that

C.when                           D.which

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