问题
单项选择题
The products described above have been subjected to （ ） treatment of at least 80oC for 30 minutes.
A．freeze
B．cold
C．heat
D．wash
答案
参考答案：C
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The products described above have been subjected to （ ） treatment of at least 80oC for 30 minutes.
A．freeze
B．cold
C．heat
D．wash
参考答案：C