Directions Facial expressions carry meanings that are partly determined by culture. For example, many Japanese do not show their emotions as freely as Americans do, so teachers in the United States sometimes have trouble knowing whether their Japanese students understand and enjoy their lessons.

Another example is the smile. As a common facial expression, it may show affection, convey politeness, or disguise(掩饰) true feelings. But in different cultures. smiles have different meanings. Many people in Russia consider smiling at strangers in public to be unusual and even a suspicious behavior.Yet many Americans smile freely at strangers in public places, for American culture a smile is typically an expression of pleasure.

Therefore some Russians believe that Americans smile in the wrong places; some Americans believe that Russians don&39; t smile enough. In Southeast Asian cultures, a smile is frequently used to cover emotional pain or embarrassment. Vietnamese people may tell the sad story of how they had to leave their country but end the story with a smile.

61. The best title for this passage is_________

A.Russian Culture

B.American Culture

C.Facial Functions

D.Facial Expressions and Culture

American teachers sometimes have trouble understanding Japandse students in class because Japanese students_________A.do not show their emotions as freely as American stydents do

B.are similar to American students in showing emotions

C.only express their emotions when permitted

D.do not know what to say

Vietnamese people may end the sad story with a smile to_________A.show affection

B.disguise emotional pain

C.covey politeness

D.show happiness

A smile is typically an expression of _________ in American cultureA.embarrassment

B.politeness

C.sadness

D.pleasure

Which of the following statements is true according to the passage?A.Russians think smiling at strangers is a proper behavior

B.Russians usually smile as frequently as Americans do

C.Many Americans smile freely at strangers in public

D.Russians and Americans have the same opinion of smiles

请帮忙给出每个问题的正确答案和分析，谢谢！