首页 > 大学网课
题目内容 (请给出正确答案)
[单选题]

A repeater can be used to:()

A.Increase the capacity locally (in a traffic hot spot)

B.Increase the capacity along highways

C.Get better coverage on water.

D.Get better coverage where the area to be covered is blocked by obstacles

E.For none of these purposes

查看答案
答案
收藏
如果结果不匹配,请 联系老师 获取答案
您可能会需要:
您的账号:,可能还需要:
您的账号:
发送账号密码至手机
发送
安装优题宝APP,拍照搜题省时又省心!
更多“A repeater can be used to:()”相关的问题
第1题
Can you go swimming with us this afternoon?Sorry, I can’t.I _____ take care of my li

A.can

B.may

C.would

D.have to

点击查看答案
第2题
Can John play soccer with us, Mrs Black?One moment, please. He () on the phone to his

A. He () on the phone to his cousin.

B.talks

C.talked

D.talking

E.is talking

点击查看答案
第3题
Dad,can you let()watchTV for a while.

A.us

B.we

C.our

D.ourselves

点击查看答案
第4题
Can you find us some records()to?

A.listening

B.listen

C.to listened

D.to listen

点击查看答案
第5题
I surely know it's a good opportunity for us to invest in this housing project, bu
t it all _______money in the end; that how much money we can afford to invest.

A、came close to

B、comes up to

C、comes down to

D、come back to

点击查看答案
第6题
Yes.We have to say we are now facing unexpected difficulties ahead, but we firmly be
lieve nothing can stop us from serving the people heart and soul,____?

A.can it

B.can’t it

C.can they

D.can’t they

点击查看答案
第7题
Why do we need the feedback from others to help us with our self-perception()?

A、Because we can always perceive ourselves objectiveiy

B、Because it is difficult to be objective about our own behavior

C、Because it is difficult to be subjective about our own behavior

D、Because it is a way to show modesty

点击查看答案
第8题
England has many interesting places that people like to visit.Among them, the pub is oft
en said to be a very special place for visitors to get to know the real life of the English people.The pub is a small “public place”, where people can buy beer, soft drinks and even some fast food.What’s more, a pub is also a meeting place where people sit and enjoy the beer and talking with their friends.One can easily find a pub at the street corner or in a small village.English people like the pub a lot.After a whole day of busy work, many men spend the whole evening in the pub and go back home at about eleven o’clock when the pub closes.

1.One can easily find a pub in England.()

A.Right

B.Wrong

C.The passage doesn't tell us

2.A pub is usually a large restaurant.()

A.Right

B.Wrong

C.The passage doesn't tell us

3.People go to the pub to ().

A.watch a film

B.sit and enjoy the beer

C.talk with their friends

D.both B and C

4.Many men spend the whole day drinking in the pub.()

A.Right

B.Wrong

C.The passage doesn't tell us

5.The pub usually closes around ()o’clock in the evening.

A.10

B.11

C.12

D.None of the above

点击查看答案
第9题
下列选项中不属于局域网设备的是()。

A.调制解调器(Modem)

B.集线器(HuB)

C.网卡(NIC)

D.中继器(RepeAter)

点击查看答案
第10题
以下网络互联设备中,属于MAC层的是()

A.ROUTER

B.REPEATER

C.HUB

D.SWICH

点击查看答案
第11题
There are millions of stars and planets in space.What's the difference between sta
rs and planets? Stars can give out heat and light, but planets cannot.

The sun is one of the stars.Some planets are balls of rock and some are balls of gas.We live on the planet earth.The earth spins around once every day to give us day and night.The earth goes around the sun once every year to give us different seasons.

There are eight planets moving around the sun.We call the family of the sun and its planets the solar system.Mercury is the nearest to the sun, so it is very hot.It is the smallest planet.Venus is very bright and hot.It is the nearest to the earth.Mars is covered with orange-red desi and rocks, so it looks like a red star in the sky.It has seasons like the earth.Jupiter has more than 16 moons (卫星)and it is the biggest and heaviest planet.Saturn has more than 22 moons.The other planets, such as Uranus and Neptune, are all very far from the sun and very cold.We need a telescope (望远镜) to see them.

(1)The sun can give us().

A.heat and water

B.heat and light

C.light and air

D.rock and water

(2)The Chinese meaning of "spin around" is().

A.飞行

B.行驶

C.环绕

D.旋转

(3)The earth goes around()once every year to give us different seasons.

A.the moon

B.Mars

C.Jupiter

D.the sun

(4)Mars looks red in the sky because().

A.it is covered with orange- red dust and rocks

B.it has seasons like the earth

C.it is the nearest to the earth

D.it is covered with red water and dust

(5)Which is NOT true according to the passage? ()

A.Jupiter is the biggest and heaviest planet.

B.Uranus is very far from the sun and very cold.

C.The revolution(公转) of the earth gives us different seasons.

D.We call the family of the sun and its planets the Milky Way.

点击查看答案
退出 登录/注册
发送账号至手机
密码将被重置
获取验证码
发送
温馨提示
该问题答案仅针对搜题卡用户开放,请点击购买搜题卡。
马上购买搜题卡
我已购买搜题卡, 登录账号 继续查看答案
重置密码
确认修改