凸透镜的三条特殊光线是:通过光心的光线传播方向 ,通过焦点的光线经透镜折射后 ,

题型:填空题

问题:

凸透镜的三条特殊光线是:通过光心的光线传播方向             ,通过焦点的光线经透镜折射后               ,平行于主光轴的光线经透镜折射后              。

考点:凸透镜对光的作用
题型:填空题

阅读理解。

     Mr. and Mrs. Martin live in New York. Mr. Martin is a doctor and his office is in New York. Mrs. Martin

teaches music at a school in New York.

     They have two sons. Their sons' names are Ted and Roy. Ted is twenty years old. He is now in Taiwan.

He is studying Chinese. He went to Taiwan last month and is going to stay there for two years.

      Roy is thirteen years old. He goes to high school. He likes sports very much. He likes swimming best.

He can swim faster than his father. He wants to be the best swimmer in his school.

1. What is Mr. Martin? [ ]

A. He is an American.

B. He is a teacher.

C. He is a doctor.

D. He lives in New York.

2. How many people are there in his family? [ ]

A. Three.

B. Four.

C. Five.

D. Six.

3. What does Ted study? [ ]

A. Chinese.

B. English.

C. Music.

D. Sports.

4. How long will Ted stay in Taiwan? [ ]

A. Twenty years.

B. Two years.

C. Seven years.

D. Thirteen years.

5. What does Roy want to be?[ ]

A. He wants to be a doctor.

B. He wants to teach music at a school.

C. He wants to go to Taiwan to study.

D. He wants to be the best swimmer in his school.

题型:填空题

一个年轻人去外地办事不认识路,没有礼貌地向一老人问路,老人回答“无礼”,年轻人足足走了五里也没有到达自己的目的地,这告诉我们[ ]

①礼貌和礼仪是个人素养最直接的外观形式,也是交往的最前沿②做到言谈举止彬彬有礼是我们赢得别人尊重的前提,也是成功交往的条件之一③人与人之间需要尊重,礼貌是尊重的具体表现④如果对别人不礼貌,会对别人造成伤害,也会妨碍我们与人的交往

A.①②

B.③④

C.①③

D.①②③④

题型:填空题

(3分)一同学在某次实验中测量一物体长度,记录结果为11.75mm,则该同学所使用的测量工具可能为(    )

A.10分度的游标卡尺

B.20分度的游标卡尺

C.50分度的游标卡尺

D.螺旋测微器

题型:填空题

静脉出血的特点是()

A.血色暗红

B.流出缓慢

C.呈持续性出血

D.多发生在断裂血管的远心端

E.以上都是

题型:填空题

在物业管理档案的分类中,具有客观反映各组织机构工作活动的历史面貌,便于按一定专业查阅档案等特点的分类方法称为( )分类法。

A.组织机构
B.事由
C.季度
D.年度

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