第8题: [单项选择]表示空间分辨率的单位是 A. 半值全宽 B. 对比度指数 C. 百分线对数(LP%) D. 平方厘米线对数(LP/cm2) E. 厘米线对数(LP/cm) 参考答案:E 答案解析:空间分辨率是测试一幅图像质量的量化指标,其结果通常以毫米(mm)为单位或每厘米的线对数(LP/cm)表示。
第10题: [单项选择]The young man could not live happily in an American city because______. A. he could not speak English B. he had been reared in Japan by American missionaries C. his parents were Japanese D. his outlook was Japanese 参考答案:D 答案解析:[参考译文] 这个年轻人在美国城市不能快乐地生活,因为他看问题的方式是日本式的。
[试题分析] 本题考查对细节的理解。
[详细解答] 从文章最后一段我们知道,这个年轻人在美国出生,美国血统,六个
第17题:[单选题]( )The owners are from America A.The owners are American B.The owners are Australian C.The owners are African D.The owners are Canadian 参考答案:A