/ http://www.slideshare.net/images/logo.gif / 狠狠撸Share feed for 狠狠撸shows by User: zhangxy1 https://cdn.slidesharecdn.com/profile-photo-zhangxy1-48x48.jpg?cb=1629701910 博学之，审问之，慎思之，明辨之，笃行之。