问题
单项选择题
当纤芯需要查找时，需要的仪表是（）。
A、光源和光功率计
B、仅仅用OTDR
C、万用表
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
当纤芯需要查找时，需要的仪表是（）。
A、光源和光功率计
B、仅仅用OTDR
C、万用表
参考答案：A
| 根据图表完成对话，每空词数不限。 | |||||||||||||||||||
B: It's Thursday. What 2 our lessons today? A: In the morning, we have Chinese at eight o'clock. We 3 at nine o'clock. We have English 4 . I like English. B: What 5 5 in the afternoon? A: We 6 at 7 and we 8 history 9 . What subject(科目) do you like? B: I 10 science. It's funny. |