The boy can't tolerate ____ (捐赠) a big fortune to the bad guys in the village.
先化简,再求值:(1+1x-1)÷xx2-1,其中:x=32﹣3.
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一组数据2,6,X,10,8的平均数是6,则这组数据的方差是____ .
我会填
消灭____ 迷失____ 放____