如何在角度中填充从Json文件中选择

I'm quite new with Angular,and I'm facing some problems when trying to bind values of a Json file into a select form.I've read lot of solutions and I used all of them but I don't know why it does not display me anything.I take the Json file with an $http.get,I put this file into a variable and I try to access one element and all is ok,so the file is taken in the rigth way. The Json is this one: I'm quite new with Angular,and I'm facing some