问题
多选题
下列说法正确的是[ ]
A．在真空中电磁波的传播速度不等于光速
B．人在湖边看见水底的物体是光的折射现象
C．甲同学是近视眼，那么他配戴的眼镜应该是凹透镜
D．小孔成像现象说明在同一种均匀介质中光是沿直线传播的
答案
BCD
搜题请搜索小程序“爱下问搜题”
下列说法正确的是[ ]
A．在真空中电磁波的传播速度不等于光速
B．人在湖边看见水底的物体是光的折射现象
C．甲同学是近视眼，那么他配戴的眼镜应该是凹透镜
D．小孔成像现象说明在同一种均匀介质中光是沿直线传播的
BCD
As awareness of the cenefits of humour increases, most of us want to get all the langhs we can. It seems that almost every day there is another new discovery about the power of humour to help us physically, mentally, cmotionally, and sp[iritually. Every system of the body responds to langhter in some important or positive way . 小题2:Many pcople mistakenly believe that we are born with a sense of humour. They think that when it comes to a sense of humour. “either you have got it or you don't .” This is false! What is true, however, is that the ability to laugh and smile is actually something we are born with. For example, we laugh when we are tickled under the arm, even without thinking about how to react. 小题3: The parts of the brain and central nervous system that control laughing and smiling are mature at birth in human infants, but that is not the same thing as having a sense of humour. (After all, when a baby laughs in his small bed we don’t rush over and say, “That kid has a great sense of humour!”) Your sense of humour is something you can develop over a lifetime. Don’t be nervous before others and try to laugh at yourself-then you will make them laugh too. 小题4: Humour includes a lot more than laughing and joke telling. Many people worry needlessly that they do not have a good sense of humour because they are not good joke tellers. More than jokes, a sense of humour requires being willing and able to see the funny side of life’s situations as they happen. In fact, one of the best definitions（定义）of a sense of humour is “the ability to see the nonserious element in a situation.” 小题5: There may be a thousand different ways to express your sense of humour, but joke telling is only one of those ways. As more is discovered about how humour benefits our life, more people will be able to see and enjoy the humour when they are in a difficult situation. Life depends on air, food and water, but it is made easier to live with a good sense of humour. |