“ * * ”结束后的十一届三中全会是中共历史上生死攸关的转折点。 [ ]
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His new novel is ________his own experience when he was studying in Harvard University.
A．based in
B．basing in
C．basing on
D．based on
下列作业属于为维持企业的生产能力而产生的作业是（）。
A.单位级作业
B.批次级作业
C.品种级作业
D.生产维持级作业
