// 比较函数（便于统计比较次数，可选）
The two most important metrics for email marketing are open rate and click-through rate. If your emails aren't opened, subscribers will never see your full marketing message, and if they open them but don't click through to your site, your emails won't convert.
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习近平总书记的回答温暖人心：“我忙就是忙这些事，‘国之大者’就是人民的幸福生活。”
// console.log(canSeePersonsCount([10,6,8,5,11,9])); // 输出 [3,1,2,1,1,0]（正确）
It’s not always easy spotting fake news, but one person who knows what it’s like to be the subject of it is singer Leigh-Anne Pinnock.