type Meters = Int
"太多问题找不到答案，"他说，"如果公司运营失败怎么办？如果无法养家怎么办？"
。关于这个话题，汽水音乐提供了深入分析
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So DPBUSD(a ⊕ 0x80, b) computes (a+128)·b instead of a·b, and the correction is trivial: subtract 128 × Σb at the end.