这种逆蛋白石可以设计用该鉴别乙醇中是否掺有甲醇，有毒的话，则显示字母m。
An inverse opal designed to determine if ethanol is laced with methanol could thus reveal the letter m if the poison is present.
如果在此阶段测试客户鉴别出关键的可用性或丢失的功能，那么您就面临困难的决策：发布带有关键缺陷的版本，还是推迟发布重新设计。
If the beta customer identifies critical usability or missing functionality at this stage, you have a difficult decision: release with the critical defect or delay the release in order to redesign.
为此，他们借鉴别人的成功经验，分析宣传和设计策略的成功案例，以及重新审视之前的广告和推销活动。
They benchmark the success of others; analyze what promotional and design strategies have worked in the past; and review their advertising and promotional campaigns.
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