Allows you to make changes to a document without altering its formatting.
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，这一点在同城约会中也有详细论述
2. Separate same-font from cross-font scoring. Same-font comparisons (mean 0.536) are the strongest signal. A namespace validation system that weights same-font scores higher than cross-font scores will have better precision than one that treats all fonts equally.，详情可参考91视频
Their SpaceX capsule made a fast and fiery re-entry through the Earth's atmosphere, before four parachutes opened to take them to a gentle splashdown off the coast of Florida.