题目内容
The earliest record of food safety management in China is （ ）.
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The main toxic components of germinated potato are （ ）
The storage of food includes two ways: cold and freezing. Which of the following temperature ranges belongs to the food cold storage temperature （ ）.
（ ） put forward the principle of "Shisanbushi", which firstly summarized the concept of food safety.
The chemical structure of gelsemin is （ ），which is derived from one kind of the heartbroken grasses.
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