下列说法不正确的是( )
A:任何带电体所带电荷量都是1.60×10﹣19C的整数倍
B:在摩擦起电过程中,相互摩擦的两个物体带有等量的异种电荷
C:电流的方向就是电荷定向移动的方向
D:金属导体中国自由电子定向移动的方向与导体中电流的方向相反
找一找。
有一群小朋友去看电影,他们排成了一排等候买票。其中小玲最早排队。
____,特指报纸、书籍、广播、电视、电脑网络等各种传播工具。
Mr White works in an office. He liked reading in bed when he was at school. It was bad for his1 and now he has near sight (近视). But he wouldn't want 2 to know about it and he never wears a pair of glasses. It often 3 him some trouble. One winter morning he was sent to a village school on business. He 4 a bus at a stop in a small town. Then he had to walk there. The road to the village wasn’t smooth(平坦). He fell over some times and it 5 his clothes dirty. 6 he got to the village. Suddenly it began to blow and it got colder. He was looking for the school while his 7 was blown off. He began to run after it but he couldn't get it. He couldn't understand why his hat ran into a house as if(似乎) it had 8 . And he ran into the house,9.A woman stopped him and shouted angrily, “10 are you running after my hen for?”
下列叙述中,属于生物共同特征的是( )