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About this app
【找机构 考电工证 就用电工证宝典】 电工证宝典是一个针对全国电工专业人员专业技术资格与上岗证考试的题库，包含了低压电工作业、高压电工作业、电力电缆作业、继电保护作业、电器实验作业、防爆电器作业、初级电工证、中级电工证、高级电工证、技师证等考试大纲所确定的范围，考电工证就用电工证宝典。
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What you can learn from 电工证宝典
Every shipping app on the App Store has gone through the same decisions you're working through right now: which screenshot goes first, what caption sits over it, which device frame to show, what color the background should be. The 3 screenshots above are 电工证宝典's answers to those questions — they're public, they're real, and they made it through Apple's review.
Notice the first screenshot in particular. It's the one users see in search results and on the product page, and it's where most apps spend their best caption and tightest design. Look at the proportion of background to phone, where the text sits, what one thing the image is trying to communicate.
Want to see how other Reference apps approach the same problem? Browse more Reference apps in the showcase.
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