You could apply for and enroll in systems right here. If you are new to HBS On the internet, you will be required to setup an account before starting an application for the program of one's option. 上面是取色环。外面的圈，拖动可以改变色相，中间的方框可以改变明度和饱和度。 SAI1:                       https://fletchery467ttu0.slypage.com/profile