This is a special tip test method, for different grades of steel can be distinguished.
这是一种鼻尖专用的测试法，对于不同标号钢材均可区分。
How much you tip depends on the service, which can really put your math skills to the test!
你给多少小费取决于服务的质量，这将是对数学技能的考验！
Here's a tip: you might decide to implement a portion of your monitor model, test your application and model, then add more elements to the model, and so on.
提示：您可能决定实现监视器模型的某个部分，测试您的应用程序和模型，然后向该模型添加更多的元素，以此类推。
应用推荐