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	Version	Published	Changed By	Comment	Actions
	CURRENT (v. 7)	Nov 30, 2020 10:34	kaiqi xue
	v. 6	Oct 23, 2020 05:59	kaiqi xue
	v. 5	Sep 11, 2020 13:54	Xiaoxiang Yu
	v. 4	Aug 11, 2020 04:22	Xiaoxiang Yu
	v. 3	Aug 04, 2020 05:09	Xiaoxiang Yu
	v. 2	Jul 24, 2020 08:51	Xiaoxiang Yu
	v. 1	Jul 24, 2020 05:55	Xiaoxiang Yu

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