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【单选题】
正柱面透镜可视为由( )。
A.
底相对的大小不同的三棱镜单向排列组成
B.
顶相对的大小不同的三棱镜单向排列组成
C.
顶相对的大小不同的三棱镜旋转组成
D.
底相对的大小不同的三棱镜旋转组成
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】(B) What Is World English World English is a course in the English language. It is intended for students whose native language is not English. It is a basic programme consisting of six s...
A.
Books One and Two
B.
Books Three and Four
C.
Books Five and Six
D.
none of them
【单选题】What is World English World English is a course in the English language. It is intended for students whose native lauguage is not English. It is a basic programme consisting of six stages. Each stage ...
A.
What is World English
B.
World English is a course in the English language. It is intended for students whose native lauguage is not English. It is a basic programme consisting of six stages. Each stage includes a Student Book, a Teacher’s Book, a Workbook, and cassette recordings. World English is further supported by separate books of readings, by tests, and by visual (可视的) .
C.
Who is World English for
D.
World English may be entered at any one of three different levels. The First Level, Books One and Two, is intended for students with little or no education in English. Books Three and Four make up the Second Level; they are suitable for students who have some knowledge of English. The Third Level, Books Five and Six, is intended for students who are concerned with improvement in the language.
E.
What does World English teach
F.
World English teaches four basic skills of language: listening, speaking, reading, and writing. At all levels, each skill is presented systematically. In the First Level, listening and speaking receive more attention. In the latter books, reading and writing become more important. However, reading and writing activities are presented even in Unit One of Book One; and listening and speaking exercises occur through Unit Ten of Book Six.
相关题目：
【多选题】柱面透镜的轴向标示方法有（）
A.
老式英国标示法
B.
鼻端轴向标示法
C.
标准标示法
D.
太阳穴标示法
【单选题】(B) What Is World English World English is a course in the English language. It is intended for students whose native language is not English. It is a basic programme consisting of six s...
A.
Books One and Two
B.
Books Three and Four
C.
Books Five and Six
D.
none of them
【单选题】双光透镜有( )个光源
A.
1个
B.
2个
C.
3个
D.
4个
【单选题】下列哪项不是球柱面透镜的组合形式（）。
A.
正交柱面形式
B.
球面加球面形式
C.
球面加正柱面形式
D.
球面加负柱面形式
【单选题】物距指:( )到透镜的距离。
A.
像点
B.
景点
C.
焦点
D.
物点
【单选题】物点至透镜的距离是：（）。
A.
物距
B.
焦距
C.
像距
D.
物体至胶片的距离
【单选题】球柱面透镜异号转换同号的口诀为( )。
A.
相加、变号、相同
B.
相加、变号、转轴
C.
相减、变号、相同
D.
相减、同号、转轴
【单选题】What is World English World English is a course in the English language. It is intended for students whose native lauguage is not English. It is a basic programme consisting of six stages. Each stage ...
A.
What is World English
B.
World English is a course in the English language. It is intended for students whose native lauguage is not English. It is a basic programme consisting of six stages. Each stage includes a Student Book, a Teacher’s Book, a Workbook, and cassette recordings. World English is further supported by separate books of readings, by tests, and by visual (可视的) .
C.
Who is World English for
D.
World English may be entered at any one of three different levels. The First Level, Books One and Two, is intended for students with little or no education in English. Books Three and Four make up the Second Level; they are suitable for students who have some knowledge of English. The Third Level, Books Five and Six, is intended for students who are concerned with improvement in the language.
E.
What does World English teach
F.
World English teaches four basic skills of language: listening, speaking, reading, and writing. At all levels, each skill is presented systematically. In the First Level, listening and speaking receive more attention. In the latter books, reading and writing become more important. However, reading and writing activities are presented even in Unit One of Book One; and listening and speaking exercises occur through Unit Ten of Book Six.
【单选题】呈双凸透镜状的是( )
A.
虹膜
B.
角膜
C.
晶状体
D.
睫状体
E.
瞳孔
【单选题】负透镜的眼镜放大率（ ）
A.
小于1
B.
等于1
C.
大于1
D.
不确定
E.
无放大率
【单选题】在Visual Foxpr0中，可视类库文件的扩展名是（ ）。
A.
．dbf
B.
．scx
C.
．vex
D.
．dbc
【单选题】球柱面透镜是指（）。
A.
透镜各子午线上的屈折力相等
B.
轴上没有屈光力
C.
两个子午线上均为屈不正状态且屈光力不等
D.
与轴垂直的屈折力最大
【单选题】下列现象不是利用透镜的是（ ）
A.
同学通过近视镜看清黑板上的字
B.
李爷爷用放大镜查资料
C.
照镜子
D.
使用投影仪