A:根据磁感应强度B的定义式B=F/IL可知,磁感应强度B与F成正比,与IL成反比
B:一小段通电导线在某处不受磁场力作用,该处的磁感应强度一定为零
C:线圈中磁通量变化越大,线圈中产生的感应电动势一定越大
D:线圈中磁通量变化越快,产生的感应电动势越大
2017年是中国与希腊建立全面战略伙伴关系第二个10年的开局之年,也是中希文化交流与文化产业合作年。值此之际,“希腊时光”摄影展在福州开幕,一张张具有希腊风情和文化照片,让参观者对这个国家心生向往。这说明( )
①各民族文化具有共性与普遍规律
②文化既是民族的,又是世界的
③文化交流推动了文化内容的创新
④文化创新要保持文化的民族特色
There is a p____near our school. We can see many trees and flowers there. Some flowers are red, and some are y____. We can see a hill behind the park, too. At the foot of the hill we can see a r____. There are some boats on it. Children like to go there. It is Monday today. There are many young pioneers(少先队员)in the park. Some are walking and singing. S____are dancing and p____ games. Ann and h____ sister Kate are flying a k____. Tom and his brother Sam are t____a frisbee (飞盘). Their lather and mother are sitting u____ a tree. All the people are h____a good time.
如图的图象与对应实验过程不相符的是( )
小明在出了一场车祸后不能闻到香味的原因是( )