连词成句。

1. does, what, father, your, do (?)

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2. is, actress, she, an (.)

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3. does, where, work, he (?)

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4. bus, by, goes, school, to, she (.)

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5. does, how, he, to, go, work (?)

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注册会计师了解审计单位及其环境的目的是（）。

A、为了进行风险评估程序

B、收集充分适当的审计证据

C、为了识别和评估财务报表重大错报风险

D、控制检查风险