1+l+l+l+1=?
7个回答
数学答法:
1 l l l 1
=1+1
=2
脑筋急转弯答法:
1桶水+一桶水
=1桶水(l是扁担吧)
小爱为你解答^望采纳哦~(这是我第一次解答哦)
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L1,L2分别过(1,1),(4,-3),L1平行于L2,L1,L2距离为3,求L1,L2方程
(L/n-1)+( L/n+1)=L/1
L1+L2=L2+L3.已知L1=55,L3=?