3a=4,3b=36,求2/a+1/b的值.
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3a=4,3b=36,求2/a+1/b的值.
3a=4,3b=36,求2/a+1/b的值.
3a=4,3b=36,求2/a+1/b的值.
3/2 + 1/12 = 19/12
3a=4,3b=36,求2/a+1/b的值.
3a=4,3b=36,求2/a+1/b的值.
3a=4,3b=36,求2/a+1/b的值.
3/2 + 1/12 = 19/12