Which of the following is her likely anatomical defect? A: Ectoderm B: Endoderm C: Paraxial mesoderm D: Lateral plate mesoderm

ZEMAX支持下列哪种视场形式( )。 A: field angle B: object height C: paraxial image height D: eal image height

ZEMAX支持下列哪种孔径定义方式( )。 A: entrance pupil diamete B: image space F C: D: Object space NA E: paraxial working F F:

【单选题】Had we not made the paraxial approximation ,the y dependence of the image point would not have vanished. 以下关于划线部分在句中所起作用说法正确的是: A. 条件状语从句 B. 过去分词短语做状语 C. 原因状语从句 D. 主句的并列句