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Not Equal: Everything in this space must be different. The answer is 6-1, placed vertically; 6-3, placed horizontally; 5-0, placed horizontally; 1-4, placed vertically; 2-4, placed horizontally.
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但是，奧爾代也指出，由於關稅普遍適用，有一件事是確定的：外國產品在美國的價格普遍會更高。
这与阿里的逻辑异曲同工，不过，阿里的硬件嫁接在更庞大的商业根系上。