当事人要求听证的，应当在行政机关告知后3日内提出
正确
暂无解析
I'msorryIforgottowrite;Ihadsomuchelse________mymind.
Whenworkersareorganizedintradeunions,employersfindithardtolaythem________.
设函数f(x)=1-x^2在区间(,)
设函数y=y（x）由参数方程
Theenginehasbrokenandtheboatis______onthewater.
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