问题
单项选择题
距受检眼50cm处行检影法验光,当用-3D测得中和点时,此患眼屈光度为()
A.-5DS
B.-4DS
C.-3DS
D.-1DS
答案
参考答案:A
距受检眼50cm处行检影法验光,当用-3D测得中和点时,此患眼屈光度为()
A.-5DS
B.-4DS
C.-3DS
D.-1DS
参考答案:A
根据对话内容及方框中所给的句子补全对话,使对话的意义连贯、完整。其中一项是多余的。
B: No,【小题1】 I like going to the movies. A:【小题2】 A: Twice a week. B: Well, do you like watching TV , Bill? C: Yes,【小题3】 A: What ‘s your favorite program? C: Sports shows. What about you ? A: I never watch TV .【小题4】 C: What do you usually do in your free time? A: I usually exercise. Sometimes I read books. C:【小题5】 |