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【单选题】
有一函数 , 以下程序段中错误的是:A.
if (x>0)y=l; else if (x==0) y=0; else y=-1;
B.
y=0; if(x>0)y=1; else if(x<0)y=-1;
C.
y=0; if (x>=0); if(x>0)y=1; else y=-1;
D.
if (x>=0) if (x>0)y=1; else y=0; else y=-1; (1.0分)
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举一反三
【单选题】The Frame Relay network in the diagram is not functioning properly.What is the cause of the problem?（）
A.
The Gallant router has the wrong LMI type configured
B.
Inverse ARP is providing the wrong PVC information to the Gallant router
C.
The S3 interface of the Steele router has been configured with the frame-relay encapsulation ietf command
D.
The frame-relay map statement in the Attalla router for the PVC to Steele is not correct
E.
The IP address on the serial interface of the Attalla router is configured incorrectly
【单选题】The fetch part of the fetch-execute cycle fetches the next instruction to be executed from memory.
A.
True
B.
False
【简答题】What is the cause of the problem?
【单选题】In the early part of the 19th century, ______ was the center of American writing.
A.
Boston
B.
Detroit
C.
New York City
D.
Philadelphia
【单选题】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.
【简答题】全国助残日是哪一天？
【单选题】Excel2010 中取消工作表的自动筛选后
A.
工作 表 的 数 据 消 失
B.
工作 表 恢 复 原样
C.
只剩 下 符 合 筛 选 条 件 的 记 录
D.
不能 取 消 自 动 筛 选
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