题目内容：
Which of the following is NOT mentioned in the second paragraph?
A．Nomatter what the culture may be，a person should show interest and concem in a friend’S serious problems． B．It’s hard to form a general opinion about Americans because there are too manv varieties of them．
C．Many foreigners or newcomers from different cultures aye disappointed bv Amedcans．
D．Americans are always ready to offer help to foreigners even if they don’t receive a specific request．
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