第二，不断膨胀的投资模型。有些品牌原本投资仅需30万，却突然提升至80万，还要求加盟商频繁更新形象。蜜雪冰城曾将形象更新周期从3年调整为4年，核心就是避免加重加盟商的二次投资负担——过多的二次投资，相当于让加盟商重新开一次店。
// console.log(canSeePersonsCount([1,2,3,4,5])); // 输出 [1,1,1,1,0]（正确）。关于这个话题，谷歌浏览器【最新下载地址】提供了深入分析
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The ISS does have its own defenses, of course. Fabric-y buffers envelope some of the systems, and a bumper called the Whipple Shield helps blunt impact. That shield is only built to stop debris up to about 1 cubic centimeter, though, and the debris tracker is only designed to catch pieces 10 cubic centimeters and larger. In other words, there’s a gap in defenses.
Debris actually pelts the ISS all the time, and noticeable dents and cracks line the exteriors. But should something fully breach the station, cabin atmosphere will seep into the vacuum of space and alarms will go off. Pressure gauges will confirm to astronauts that the station has, almost certainly, been hit, and the speed of the seepages may indicate how much time the crew has to respond. According to one NASA estimate, a 0.6-centimeter-wide hole leaves 14 hours to plug the leak. A 20-centimeter hole leaves less than a minute.