一根绳子长96米,将它对折剪断,再对折剪断,如此共反复5次,此时每根绳子长多少米()
A.2
B.3
C.4
D.5
参考答案:B
解析:
下面的饼状图显示了某校对学生学业成绩评价的新体制,图表所示①—⑤项全面构成了一个学生的学业成绩。假如你是该校学生,请根据下列图示,以“The New Grading System in Our School”为题用英语写一篇短文。内容包括:
1.简要描述图中信息;
2.谈谈你对这一新举措的看法并说明原因。
注意:词数: 100—120,文章的题目和开头已给出(不计词数);
图表说明:① test results
② notes
③ homework
④ class performances
⑤ teamwork
The New Grading System in Our School
In order to help students develop their abilities in all fields, our school now has asked the teachers to make some changes in the grading system. This chart shows how it works.
介质损失是绝缘介质()的能量损失。
A.在直流电场作用下
B.在交流电场作用下
C.表面泄漏
D.电容电流