A：
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C：
D：
秦王为什么能“尽并兼天下诸侯”？在“尽并兼天下诸侯”之后，他又采取了哪些措施加强专制统治？
Jane's grandmother had wanted to write children's book for many years, but one thing or another always got in way.
与双曲线
有相同的焦点, 则
的值为( )