题目内容：
Questionsare based on the following passage:We use both words and gestures to express our feelings, but the problem is that these words and gestures can be understood in different ways.
It is true that a smile means the same things in any languages. So does laughter or crying.
There are also a number of stalking similarities in the way different animals show the same feel-ing. Dogs, tigers and humans, for example, often show their teeth when they are angry. This is probably because they are born with these behavior patterns.
Fear is another emotion that is shown in much the same way all over the word. (80)In Chi-nese and in English literature, a phrase like "he went pale and began to tremble" suggests that the man is either very afraid or he has just got a very big shock. However, "he opened his eyes wide" is used to suggest anger in Chinese whereas in English it means surprise. In Chinese "sur-prise" can be described in a phrase like they stretched out their tongues ! Sticking out your tongue in English is an insulting gesture or expresses strong dislike.
Even in the same culture, people differ in ability to understand and express feelings. Experi-ments in America have shown that women are usually better than men at recognizing fear, anger,love and happiness on people' s faces. Other studies show that older people usually find it easierto recognize or understand body language than young people do.
According to the passage,__________. A．we can hardly understand what people' s gestures mean
B．we cannot often be sure what people mean when they described their feeling in words or gestures
C．words can be better understood by older people
D．gestures can be understood by most of the people while words cannot
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