试题与答案

圆管层流的断面流速分布符合()。 A.均匀规律 B.直线变化规律 C.抛物线规律 D

题型:单项选择题

题目:

圆管层流的断面流速分布符合()。

A.均匀规律

B.直线变化规律

C.抛物线规律

D.对数曲线规律

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C, D解析:在分析了近代中国社会的主要特点之后,毛 * * 由此得出结论:“帝国主义和中 * * 的矛盾,封建主义和人民大众的矛盾,这些就是近代中国社会的主要的矛盾。当然还有别的矛盾,例如资产阶级和...

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题型:阅读理解

More teachers are starting off the school year with letters to parents and students to introduce themselves and set a tone (基调) for the year.The letters are a good way to start positive communication with parents, several teachers told Education World

“I think it’s professional (专业的),”said Dorothy Peselli, an English teacher at Sparta High School in Sparta, New Jersay, Peselli, who gives out the letters the first day of school, told Education World.“It gives parents an image of you as a professional.If you start communication off in a positive manner, you will have the parents on your side when you need them.”

In her letter to parents, Peselli encourages them to call or e-mail her with specific concerns about their children.“I want to work as a team to make sure that your child becomes an independent lifelong learner,” Peselli wrote to parents last September.She also telephones the parents of all her students at the beginning of the year.

Peselli includes with the letter a classroom handbook (手册)listing plans and rules .And she requires that both parents and students read and sign statements (included in the letter!) that they read the handbook.The student letter also lists needed supplies and gives encouragement.“Please come to class ready to work and learn.This will be an exciting year for all of us,” it says

Last year, Peselli taught at a different high school and parents there were “shocked”, but appreciative, that she had so much contact with them,“I received roses and a thank-you note from one boy and his mother”.Peselli said.She wished her own children’s teachers would take the time to write notes as well.“I never got a letter home from any of my daughter’s high school teachers.” she said, “It would be nice to know the background of some of the people who are teaching my daughter.”

小题1:We may learn from the text that            

A.most teachers are writing letters to parents and students

B.the handbook is used to list supplies and give encouragement

C.Peselli believe it important for teachers to exchange information with parents

D.Peselli mainly introduces her background and teaching experiences in the letters小题2:The underlined word “it” in the fourth paragraph refers to         

A.the handbook

B.the requirement

C.the school

D.the letter小题3:We can infer from the last paragraph that          

A.parents were satisfied with Peselli’s way of working

B.Peselli means to surprise parents by writing students

C.Peselli seemed to be popular among boy students

D.all Peselli’s children are studying in high schools小题4:The purpose of the text is to          

A.introduce an English teaching method

B.give advice on how to teach students

C.encourage teachers to keep in touch with parents

D.show us how Dorothy Peselli makes teaching plans

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