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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

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

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

 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

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

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

 (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

（2010·江蘇寶應中學高三上第一次學情調查）    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