--------different good manners may be in different countries,the principles of good manners id always the same.

问题描述:

--------different good manners may be in different countries,the principles of good manners id always the same.
A.Although B.However C.Despite D.No matter

因为different的位置:
Although good manners may be different in different countries...
再看 however different good manners may be in different countries ...
however 修饰different,所以different跟在however的后面,好理解的
明白不?