皮带划破及撕裂的原因？

在5倍的放大镜下看一个30°的角，看到的角是（　　）

A．30°

B．150°

C．35°

D．6°

第三部分：阅读理解（共20小题，每题2分，满分40分）

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。

I was helping in my son’s classroom when I spotted a poster that reads, “Sticks and stones

may break my bones but words can break my heart”. I started thinking.

Teachers are such an important part of a child’s life. A teacher’s support determines how safe a child feels in school. His inspiration determines how much risk a child will take in the classroom, his understanding determines how important a child feels in school and his love determines a child’s motivating and attitude toward education. And the effect a teacher has on a child doesn’t end when the school bell rings at the end of the day. Rather, those feelings developed in the classroom go home with the child and, in a large part, determine what sort of evening the child and the family have. The importance of a teacher to a child is fantastic and cannot be over-emphasized.

All my children are fortunate to have remarkable teachers. Consequently, the three of them love going to school almost as much as they love using teacherisms. For example, one of Hannah’s favorite phrases in used when I mess up. She looks at me with understanding and says, “It’s okay to make mistakes, mama, because you’re only learning.” Rachael’s favorite phrase is used to start most of her jobs; with a glow in her eye, she says, “I’m just going to do my best, mama, because that’s all I can do!” But perhaps my favorite is Jacob’s response to his sisters when one of them says something he doesn’t like. With his hand on his heart he says, “Don’t say that because words can break my heart.”

Like most parents, I hear teacherisms daily. And every time I hear one, my heart floods with gratefulness for the wonderful teachers who make my children feel safe, important, and successful in the classroom, and who are helping my children achieve emotional good health. There is much talk today how to measure a teacher’s worth. I think we need only look at the students. Children mirror teachers’ words and actions, and the content of those reflections shows teacher’s greatness.

51．Teachers are important to students in that________.

A．they equip them with book knowledge

B．they help free the parents from worries

C．they guarantee each family a happy evening

D．they help keep them emotionally healthy

52．The three children’s examples are used to show that________.

A．they are lucky to have wonderful teachers

B．they can eventually develop into good teachers

C．they are sometimes mentally hurt by the teachers

D．they have a successful performance in school

53．To his mother, what the boy says possibly sounds________.

A．ridiculous B．convincing       C．humorous D．inspiring

54．The underlined word “teacherisms” probably refers to “________ ”.

A．how teachers normally deal with their students

B．what teachers usually say to their students

C．why teachers seem important to their students

D．where teachers agree with their students

长期借款具体包括( )。

A．国库券

B．可转换债券

C．普通金融债券

D．次级金融债券

E．混合资本债券

各国的工伤保险制度大体上可以分为（）。

A、雇主责任模式

B、社会保险模式

C、普遍保障模式

D、雇员责任模式

客户对账包括（）。

A.银企对账

B.个人综合对账

C.信用卡对账

D.其他对账