有放回抽样中一类求期望题型的再探究——以2025年一道高考数学题为例#br#

SHU XUE JIAO XUE ›› 2026, Vol. 0 ›› Issue (10) : 27-29.

SHU XUE JIAO XUE ›› 2026, Vol. 0 ›› Issue (10) : 27-29.

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