图像遮掩的应用流程（要点，一张图可以分配给多个元素，区别仅在遮掩组件的位移）

For example, when learning anatomy, you might present a complex illustration. Only a small part of it would be missing. The student's job is to name the missing area. The same illustration can be used to formulate 10-20 items! Each item can ask about a specific subcomponent of the image. Graphic deletion works great in learning geography!

Exemplary graphic deletion:

例如，当学习解剖学时，可能会呈现复杂的插图。只有一小部分会失踪。学生的工作是给失踪的地区取个名字。同样的例子也可以用来制作10-20项！每个项目都可以问一个具体的子图像。图形删除在学习地理上很有用！