下列哪项硬件操作会影响业务（）。 A.拔插光分波板ODU B.拔插_爱下问搜题

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问题单项选择题

下列哪项硬件操作会影响业务（）。

A.拔插光分波板ODU

B.拔插光合波板OMU

C.拔插光分插复用板OAD

D.拔插光放大板OLA

答案

参考答案：D

选择题

— What ______ when I phoned you?
— I ______ my work, and I wanted to go out.

A. have you done; finished
B. were you doing; have finished
C. did you do; had just finished
D. were you doing; had just finished

单项选择题

13号车钩的下垂量应不超过（）。

A、5mm

B、8mm

C、10mm

D、12mm