A、F=<img src="https://learning.mhtall.com/upload/uc_course/10154/A151E3EC296927DE451E7B68CBC1D607E147EACD.png" alt="">
B、F=<img src="https://learning.mhtall.com/upload/uc_course/10154/D4AAE01AAFAD76DA547162CE848293F38231F231.png" alt="">
C、F=<img src="https://learning.mhtall.com/upload/uc_course/10154/5AECF5F9F7F5BE975B7DF7E9A54BAE96BCF3F934.png" alt="">
D、F=<img src="https://learning.mhtall.com/upload/uc_course/10154/C4F8953213FC3C8C29FFA737499F00FC6E7240B8.png" alt="">