下列关于工程预付款的预付时间的说法，正确的是( )。

PDCA循环中的C阶段包含两个环节，其中第一个环节是( )。

A.制定实施的管理措施
B．检查是否严格执行了计划的行动方案
C．自检
D．检查计划执行的结果

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听力原文： Congress in Mexico has voted to strip the mayor of Mexico City off his immunity from prosecution, a move that could force him out of the election contest. The left-wing mayor Lopez Obrador has been accused by prosecutors of contempt of court during a land dispute. Mr. Lopez Obrador says this is a government-backed plot to stop him winning the presidency next year. His opponents argued that he had shown contempt for the rule of law, and democratic accountability. Earlier, tens of thousands had gathered in Mexico City's main square to support their mayor, the most popular politician in the country. They likened this process to a coup and demanded that all charges be dropped.The mayor was accused of ______ .A．taking bribeB．showing contempt of courtC．playing tricks during a land disputeD．taking part in a government-backed plot

A.
B.
The
C.
A．taking
D.showing
E.playing
F.taking

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