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题目内容
（石家庄铁道大学-大学英语2）
The __________ of this recipe (烹饪法) was made public one year after it was put into the market.
A、 formula
B、 form
C、 flavor
D、 frown
A、 formula
B、 form
C、 flavor
D、 frown
参考答案
