【单选题】1 Our heritage and our culture have caused most Americans to assume not only that our language is universal but that the gestures we use are understood by everyone. We do not realize that waving goodb...
A.
Americans do not understand their own heritage and culture well
B.
the author does not mind Americans' cultural blindness
C.
Americans pay little attention to foreign customs and languages
D.
America has no problems in the world because it's the most powerful country