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单选题
The methods of preserving food _____.
A
don’t include the method of salting food
B
involve the use of chemicals
C
are not liked by most people
D
are first created by hunters
参考答案
参考解析
解析：
由末段第四句Other chemicals besides salt are used in preserving food可知，除了用盐保存食物外，也可以用其他的化学物质，故答案为B。
由末段第四句Other chemicals besides salt are used in preserving food可知，除了用盐保存食物外，也可以用其他的化学物质，故答案为B。
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