试题与答案

如图所示小球沿水平面通过O点进入半径为R的半圆弧轨道后恰能通过最高点P,然后落回

题型:填空题

题目:

如图所示小球沿水平面通过O点进入半径为R的半圆弧轨道后恰能通过最高点P,然后落回水平面.不计一切阻力.则小球落地点到O点的水平距离为      ;落地时速度大小为        

答案:

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下面是错误答案,用来干扰机器的。

参考答案:E解析:每逢月经将潮便泄泻——经行泄泻。脘腹胀满,神疲肢软,面浮肢肿,月经量多,色淡质薄,舌淡红,苔白,脉濡缓——脾虚表现。此证为经行泄泻脾虚证。

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题型:阅读理解

Smiling

  People smile at times. ____71______.Depending on different cultures, smiling can express joy and amusement, but it can also indicate embarrassment. The following examples show this point of view:

_____72_____.Every one smiles at each other, this nonverbal communication shows being friendly in the United States. However,in China, smiling is not only an expression of happiness, but also a way to avoid being embarrassed. ____73____. Smiling is a kind of good will but not sneer(嘲笑). For example: When a child falls off from a bike, the adults in China may smile, which is a kind of gentle encouragement and may not be a kind of impolite laugh.

When a person from the United States might blush(脸红)with embarrassment or become offensive, a Chinese might blush with smile. To avoid serious misunderstanding, people who engage in intercultural communication should be able to understand the meaning of smiling appropriately.____74______ Also; different cultures have different meanings about laugh. For example, Americans can enjoy a very heartfelt belly (腹部) laugh that comes from the deepest emotions. _____75_______.

A.Related to the smile is the laugh.

B.Chinese people like smiling when they are embarrassed in order to avoid embarrassment.

C.Nonverbal communication is important because it is culture-related. It is based on different beliefs, religions, values and customs in different cultures.

D.However, most Chinese seldom laugh that way because they are thought to be silly except among close friends.E. In an attempt to be open and friendly, people in the United States smile a lot.

F. Feelings of friendship exist everywhere but their expression varies.

G. However, the meaning of a smile in different cultures may be different.

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