NO7信令链路指标中,链路闭塞率的公式为BSC闭塞链路数/信令链路可用数。()

题型:判断题

问题:

NO7信令链路指标中,链路闭塞率的公式为BSC闭塞链路数/信令链路可用数。()

考点:通信工程师电信网络管理基础知识电信网络管理基础知识题库
题型:判断题

One evening , my dad asked me to buy some bread for dinner . It was dark and cold outside . I rode a bike to a shop near my school . When I left the shop ,it got even darker , so I got on my bike right away. Then I found a woman in a white dress riding a motorcycle after me . She followed me for a long time . I rode very fast and started to cry for help, but no one was there . I was too scared and too tired to ride any faster . At last , I gave up . The woman stopped in front of me and said , “ Why were you riding so fast , Ken ?It’s dangerous !” I looked at the woman . “ Oh , It’s you, mum !You really scared me . Dad said you wouldn’t be back for dinner tonight !”

小题1:Why did Ken go out that night ?

A.To ride a bike

B.To buy some food

C.To go to cram school

D.To look for his mother小题2:Why was Ken riding fast on his way home ?

A.He was hungry

B.Someone was following him

C.It was getting darker and colder

D.His father asked him to go home soon小题3:Who was the motorcyclist (骑摩托者) ?

A.A stranger

B.A policeman

C.Ken’s father

D.Ken’s mother

题型:判断题

在一次军事演习中,距地面H=180m高处的飞机以v1=200m/s的水平速度投下一颗炸弹,轰炸地面目标P,若不计空气阻力,求:

(1)炸弹落地所用的时间;

(2)飞机投下炸弹时距目标P的水平距离;

(3)若在飞机投下炸弹的同时在地面上Q处恰好竖直向上发射了一颗炮弹,并击中炸弹,已知炮弹的发射点与炸弹投掷点的水平距离为s=720m,则发射炮弹的速度为多少.

题型:判断题

新疆牧区属于(  )

A.高寒牧场

B.山地牧场

C.草原牧场

D.人工牧场

题型:判断题

有以下程序:
#include <stdio.h>
main()
int i,s=0;
for(i=1;i<10;i+ =2) s+ =i+1;
printf("%d\n",s);

程序执行后的输出结果是( )。

A) 正整数1~9的累加和
B) 正整数1~10的累加和
C) 正整数1~9中奇数之和
D) 正整数1~10中偶数之和

题型:判断题

()为磁盘拷贝命令,此命令只能拷贝软盘,硬盘和网络驱动器不能使用此命令。

A、Diskcopy

B、copy

C、RENAME

D、BACKUP。

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