單項(xiàng)選擇題The products described above have been subjected to ( ) treatment of at least 80ºC for 30 minutes.

A. freeze
B. cold
C. heat
D. wash


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1.單項(xiàng)選擇題The above mentioned condition was caused (?。﹖he process of manufacturing.

A、in
B、of
C、to
D、for