下列哪项是阳虚证的典型表现A．神疲乏力B．形体消瘦C．形寒肢冷D．舌暗脉E．大汗淋漓

下列说法不正确的是[ ]

A．一个数与它的倒数之积是1  

B．一个数与它的相反数的商为-1  

C．两个数的商为-1，则这两个数互为相反数  

D．两个数的积为1，这两个数互为倒数

阅读理解。

                         Different Customs and Cultures

     If an American is satisfied with you, he will put his thumb and forefinger into a

circle. That means OK. But in Brazil, the very sign is considered to be rude. In

Poland, a guest usually presents flowers to his hostess. The number must be an odd (奇数) one. Besides, the hostess isn't  expected to remove the cover of the bunch of

flowers. And usually, red rose is a sign of love.

     Usually we nod to express our agreement and shake our heads to show

disapproval. To our surprise these body movements mean the opposite in Bulgaria(保加利亚).

     The differences in customs and cultures in the world are really noticeable. We

should learn more about them to avoid embarrassment(窘迫). Then, would you

please remember: When in Rome, do as the Romans do.

1. In Poland, if a man gives some odd red roses to a woman as a present, it means

that he     .       

A. will invite her to a dinner party

B. has not been in love with her

C. will invite her to a ball

D. has fallen in love with her

2. If a Brazilian puts his thumb and index(食指)into a circle, it shows that he        you.

A. will be friends with

B. is not satisfied with

C. is willing to help

D. is satisfied with

3. In Poland, it is            for the hostess to remove the cover of the bunch of flowers somebody presented to her.

A. impolite                      

B. polite

C. expected                      

D. great      

4. In Bulgaria, if a man nods, it means that he           with you.

A. will have a talk                  

B. disagrees

C. will shake hands                

D. agrees

5. The sentence "When in Rome, do as the Romans do. " means that           .

A. we should learn from the Romans

B. we should work as the Romans do

C. we should obey its customs when we are entering a country

D. we have been Romans

不作为的义务

链传动机构，适用于距离较近的两轴之间的传动。（）

若规定餐次比为早餐占25%、午餐40%、晚餐35%，某成年男性在膳食调查中没有吃早餐和晚餐，只吃了午餐，则该男性当天的人日数为（）

A．0.4

B．0.6

C．0.75

D．1.0