问题 多项选择题

下面哪些合同无效( )

A.A和B订立了一辆赛车的买卖合同,但当时该车已经被盗

B.9岁的甲将遥控玩具车以100元卖给8岁的乙

C.中学生刘某与万某在为争夺自己喜爱的女孩子而决斗之前约定,如有死伤后果自负

D.钱某因赌博输给葛某6万元,因当时无钱而写下的欠条

E.刘翔与大众汽车公司签订的天价广告合同

答案

参考答案:B,C,D

计算题
阅读理解

Scientists are making new studies of color and its effects on our health. They have known for a long time that the color of a room or the color of the light in it can affect our feelings and emotions. Many prisons and hospitals have at least one room that is painted pink. Officials have found that light and color can produce physical changes in our bodies.

Professor Falfan worked with a group of 9 disabled children at school in Albert. Two of the children were blind. The other seven had normal sight. The scientists changed the color of the school room, then looked for changes in blood pressure, heart beat and breathing rate. The effects of color changes were the same for the blind children as for those with normal sight. Their blood pressure dropped from about 120 to 100. Similar changes were reported in heart-beat and the breathing. The children also were calmer and less excited. Then the colors of the room were returned to orange and white. Blood pressure, heart-beat and breathing rate went up and the children became excited again.

Professor Falfan said different colors produce different levels of light energy. He said the differences seem to affect chemicals in the brain that carry messages from nerve to nerve and from nerve to muscle.

小题1:Light and color can affect________.

A.only one’s feelings and emotions

B.one’s energy

C.one’s mental changes

D.one’s heart-beat, brain activities, blood pressure, feelings and emotions小题2:The color of pink had a calming effect, that is to say, the color affects __________.

A.the chemicals in the brain

B.the eyes

C.the skin

D.the muscle小题3:According to the text, orange and white are colors which can make people ________.

A.calm

B.active

C.sick

D.blind小题4:The colors in the school room mentioned in the passage were changed from _________.

A.orange to white

B.orange and white to dark blue

C.orange and white to pink or some other colors

D.gray to more colors小题5:After reading the passage we can conclude that ________.

A.blind people can be affected by colors, too

B.one’s heart will beat fast in a colorful room than in a white room

C.the chemicals in the brain change with feelings and emotions

D.if one’s blood pressure drops, his breathing will get slower and slower