A case study exploration is a qualitative investigate design. It is commonly used in the social sciences as it requires observing the cases or topics inside their options with the most minor interference through the researcher. 美国担心中国月球探测器「玉兔」轧了阿姆斯特朗的脚印，会出现这种情况吗？如何保护人类在月球上的历史遗迹？ 知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背... https://hectorwgegl.blogdosaga.com/36335226/hbs-case-study-writing-help-for-dummies