如图所示，在匀强电场中，将一电荷量为2×10﹣5C的负电荷由A点移到B点，其电势能增加了0.1J，已知A．B两点间距离为2cm，两点连线与电场方向成60°角，求：
找出句子中的错别字并改正。
①这时，从远处传来一阵清桅的啼叫声。____
②经过这沉重的一击，镜子般的冰面被振得颤动起来。____
③这些外层蚂蚁到死也没有松动丝豪。____
④有一个狩猎队，把一群羚羊赶到了悬涯边，准备全部活捉。____
阅读理解
Look! This is my new schoolbag. It's big. It's blue and white. I have an English book, a Chinese book, a math book, three notebooks and a pencil-case in it. In my pencil-box, you can see a ruler, two pens, seven pencils and a notebook. Oh, where is my schoolbag? It's on my chair.
