在C++中，打开一个文件时与该文件建立联系的是（ ）。
A、流对象
B、模板
C、函数
D、类
下面哪些是实施SOA的优势？（）
A、可降低IT的灵活性
B、可实现业务上的灵活性
C、可提高集成的投资回报
D、可更新已有的IT设施
E、提高集成的ROI
画正等轴测剖视图，可先画物体完整的（）。
A、正等轴测图
B、三视图
C、主视图
D、平面图
LTE中的链路预算是以（）为覆盖目标来进行的。
An administrator is notified that all network printers are not printing. The administrator reviews the server and the print service is started. Which of the following is the cause of the problem？（）
A、 The drivers for the printers are failing.
B、 The spool folder is full.
C、 The spool folder is not on the C drive.
D、 A network printer was disconnected.
Rootvg has just been mirrored to a second disk. Which of the following actions should be performed to boot the system off of either disk?（）
A、Extendvg to include both disks in the rootvg
B、Copy the hd5 logical volume to hdisk1
C、Run the bosboot and bootlist commands
D、Reset the dump device to /dev/sysdumpnull