知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 Nope, it gives an alternative solution the OP may well not have regarded about, and since it is the approved answer and the answer with the will have to up votes I'd conclude the OP and at the very least 41 Other folks uncovered it helpful. https://case-study-analysis94509.theblogfairy.com/36874013/the-fact-about-case-study-helper-that-no-one-is-suggesting