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趣填加号虽然下面这些算式都不是等式,但是如果能够在适当的位置填上几个加号,那么它们都能够成为有趣的等式。你能很快填上吗?
Although all of the following equations are not equations, they can all be fun equations if you can fill in a few plus signs in the right places. Can you fill it in soon?