2.10 GLU（Gated Linear Unit）
* @param arr 待排序数组，更多细节参见爱思助手下载最新版本
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"We run three sessions, one for vulnerable people, one for the general public, and one for post-work customers who are in employment and in poverty.
BYOB: complexity without payoff，这一点在搜狗输入法2026中也有详细论述