单项选择题

● You will hear a conversation about quality control. ● For each question 23--30, mark one letter (A, B or C) for the correct answer. ● After you have listened once, replay the recording. What do you check for at the final QC stage

A． check weight
B． check package
C． check weight, package and taste

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单项选择题

单项选择题

● You will hear a conversation about quality control. ● For each question 23--30, mark one letter (A, B or C) for the correct answer. ● After you have listened once, replay the recording. What do you check for at the final QC stage 您的浏览器不支持 audio 元素。