anchor.diff:  :marked
     You could try this now and confirm that the  `CrisisCenterModule` loads after you click the "Crisis Center" button.
   
  +  我们可以现在尝试它，并确认在点击了“Crisis Center”按钮之后加载了`CrisisCenterModule`。
  +
     To enable preloading of all lazy loaded modules, import the `PreloadAllModules` token from the Angular router package.
  +
  +  要为所有惰性加载模块启用预加载功能，请从Angular的路由模块中导入`PreloadAllModules`。
   
     The second argument in the `RouterModule.forRoot` method takes an object for additional configuration options.
     The `preloadingStrategy` is one of those options. 
  
positive.code:   Update the `CrisisDetailComponent` to get the crisis from the  `ActivatedRoute.data.crisis` property instead;
    that's where you said it should be when you re-configured the route.
    It will be there when the `CrisisDetailComponent` ask for it.
  
  +makeExcerpt('src/app/crisis-center/crisis-detail.component.ts (ngOnInit v2)', 'ngOnInit')
  
  
negative.code: :marked
    ### *HashLocationStrategy*
  
    You can go old-school with the `HashLocationStrategy` by
    providing the `useHash: true` in an object as the second argument of the `RouterModule.forRoot`
    in the `AppModule`.
  