单项选择题

·You will hear part of a business negotiation between Mr. Mitchell and Madam Li. ·For each question 23—30, mark one letter A, B or C for the correct answer. ·You will hear the recording twice. What are reactive dyes used for

A． Fine cottons, silk and linen.
B． Cottons, silk and jeans.
C． Silk, wool and linen.

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单项选择题

单项选择题

·You will hear part of a business negotiation between Mr. Mitchell and Madam Li. ·For each question 23—30, mark one letter A, B or C for the correct answer. ·You will hear the recording twice. What are reactive dyes used for 您的浏览器不支持 audio 元素。