定义了WLAN中服务质量的802.11协议是()。 A.802.11f B.802.

题型:单项选择题

问题:

定义了WLAN中服务质量的802.11协议是()。

A.802.11f

B.802.11i

C.802.11e

D.802.11n

考点:华为认证考试华为HC012311CHSV802华为HC
题型:单项选择题

下列实验装置或操作错误的是(  )

A.

高锰酸钾制取氧气

B.

取用粉末状药品

C.

收集二氧化碳

D.

检查装置气密性

题型:单项选择题

以下程序的输出结果是 #include<stdi0.h> main() { int i=0,a=0;while(i<20){ for(;;) { if((i%10)==0)break; elsei--; } i+=11;a+=i;}printf(“%d\n”,A) ; }

A.21

B.32

C.33

D.11

题型:单项选择题

根据规定,在我国证券承销业务可以采取的方式有( )。

A.代销

B.募集

C.包销

D.配售

题型:单项选择题

The dirty, homeless man sat on the pavement, staring at the atones. He thought back more than twenty years to when he was a boy living in a small red brick house on this very street. He recalled the flower garden, the swing his dad made, and the bike he had saved up for months to buy.

The man shrugged impatiently, for the brightness of those pictures hurt him, and his memory travelled on another ten years. He had a job by then, plenty of friends and started to come home less. He did not really want to remember those years, nor the day when, because o’ debts, he had gone home planning to ask for money. He felt embarrassed, but he knew exactly where his dad kept the money. When his parents stepped out of the room, he took what he wanted and left.

That was the last time he had seen them. Ashamed, he went abroad, and his parents knew nothing about the years of wandering or time in prison. But locked in his cell he often thought of home. Once free, he would love to see his parents again, if they were still alive, and still wanted to see him.

When his prison time was up, he found -a job, but couldn’t settle. Something was drawing him home. He did not want to arrive penniless, so he hitchhiked most of the long journey back. But less than a mile from his destination he started to feel sick with doubt. Could they ever accept this man who had so bitterly disappointed them?

He spent most of that day sitting under a tree. That evening he posted a letter which, although short, had taken him hours to write. It ended with:

I know it is unreasonable of me to suppose you want to see me ... so it’s up to you. I’ll come early Thursday morning. If you want me home, hang a white handkerchief in the window of my old bedroom. If it’s there, I’ll come in; if not, I’ll wave good-bye and go.

And now it was Thursday morning and he was sitting on the pavement at the end of the street. Finally he got up and walked slowly toward the old house. He drew a long breath and looked.

His parents were taking no risks. ________________________________________________

_______________________________________________________________________________

The man threw his head back, gave a cry of relief and ran straight through the open front door.

小题1: Why did the man shrug impatiently (paragraph 2) while he was thinking of his childhood?

A.The thoughts made him angry.

B.He felt he had wasted time.

C.He was anxious to go home.

D.The sweet memory caused him much pain.小题2:Why did it take him hours to write the letter?

A.He doubted if his parents still lived in that house.

B.He had much news to tell his parents.

C.He felt ashamed to ask for forgiveness.

D.He was longing to return home and felt excited.小题3: In what order did the following events take place?

a. He took the money from his parents.

b. He bought a bicycle with his savings.

c. He was sentenced to prison.

d. He wrote the letter home.

e. He sat on the pavement.

f. He hitchhiked back home.

A.b, a, c, d, e, f

B.b, a, c, f, d, e

C.a, c, b, d, f, a

D.a, d, b, c, e, f小题4:Which of the following best fits into paragraph 8 ?

A.Every inch of the house was covered in white. Sheets, pillowcases and table clothes had been placed on every window and door, making it look like a snow house.

B.The house before him was just as he remembered: the red bricks, the brown door and nothing else.

C.A colourful blanket was over the front door. On it, in large letters, was written, "Welcome home, son

D.A police car was parked in the drive way, and two officers stood at the front door.小题5:The best title of the passage is _______.

A.Sweet Memory

B.White Handkerchief

C.Abandoned Son

D.Leaving Home

题型:单项选择题

汽车冷气机系统的吸气节流阀是控制()

A.引擎转速

B.车厢空气水分

C.蒸发器的压力

D.贮液干燥筒的温度

E.化油器阻风门

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