How does Ji-Li feel about the changes at school?

At school, Ji-li notices that classes aren't the same any more since teachers are devalued now. Everybody writes a da-zi-bao about the teachers, but Ji-li can't think of anything bad to say about hers. Someone at school accuses Ji-li's family of having a poor class status, which she knows can't be true.

Explanation:

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the answer is d. tariffs were raised by america's trading partners after the smoot-hawley tariff act, decreasing exports, and declining job rates.

the answer is "by providing data about careers and annual mean wages"