第20题答案为

第20题答案为 A.They may not be able to inflate their balloons. B.There are too many b

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Questions are based on the passage you have just heard.第19

Questions are based on the passage you have just heard.第19题答案为 A.To celebrate

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In modem industrialized societies, prices of mass productio

In modem industrialized societies, prices of mass production generally_________

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第10题答案为

第10题答案为 A.To broadcast an awards ceremony. B.To announce a meeting of the triba

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第17题答案为

第17题答案为 A.He gives advice to tutors participating in the program. B.He teaches

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