由省公司主动发起的数据骨干网维护类操作，省公司负责编写详细的_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

由省公司主动发起的数据骨干网维护类操作，省公司负责编写详细的操作实施方案，普通操作提前（）工作日向电信集团NOC提交网络操作申请。

A.1

B.2

C.3

D.4

答案

参考答案：C

单项选择题

Questions 14-23

·Look at the ten statements for this part.
· You will hear a passage about "Inflation" You will listen to it twice.
·Decide whetheryou think each statement is right(R), wrong(W) or not mentioned(NM).
·Markyour answers on the Answer Sheet.

There have been higher and higher rates of inflation in the US over the years.

A．Right

B．Wrong

C．Not Mentioned

填空题

偶函数f（x）可导，且f’（-1）=-2e，则=（）．