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[单选题]

____, it is quite easy to drill a hole in it with a eraser

A.Hard a diamond is

B.Hard as a diamond is

C.As a diamond is hard

D.How hard is a diamond

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更多“____, it is quite easy to drill a hole in it with a eraser”相关的问题

第1题

Who is Uncle Sam?"Uncle Sam", of course, stands for the United States. It is the nickname(

Who is Uncle Sam?

"Uncle Sam", of course, stands for the United States. It is the nickname(绰号) of the country. It is hard to believe that this nickname arose quite by accident and there was a man called "Uncle Sam " (46) .

The man was called Uncle Sam Wilson. He was born in Arlington, Massachusetts (马萨 诸塞州), September 13,1766. At the age of 14 Sam joined the American Revolutionary War, and served in the army under George Washington until the end of the war. He then moved to Troy, New York State and began a meat-packing business in the year 1812 war broke out between the United States and Great Britain. (47) . Among them was Governor Daniel Tompkins of New York State. He noticed the capitalized letters EAUS on the packages of meat and asked what they stood for. A workman replied that EA stood for Elbert Anderson, the businessman for whom Sam was working. (48) . In May 1813, this story appeared in a newspaper published in New York. (49) .

By the end of the War of 1812, "Uncle Sam " had come to symbolize (象征)the character of the nation and the government. (50)

A.And he added jokingly that US (actually it was the short form. for the United States stood for Uncle Sam Wilson. )

B.However, not many people have ever heard of such a man. Not even most young Ameri cans.

C.He did his bit to support the American army.

D.In 1961 the US Congress(国会) made a decision that "Uncle Sam " is the America's national symbol.

E.On October 2 that year, a group of visitors came to Sam's meat-packing plant.

F.Since Uncle Sam was an example of a hard-working man and a lover of America, the idea of "Uncle Sam" as the name for this kind of man became well-known rapidly.

(46)

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第2题

根据下列文章,请回答 1~20 题。{Page Read the following text. Choose the best word(s) for ea

根据下列文章,请回答 1~20 题。{Page

Read the following text. Choose the best word(s) for each numbered blank and mark A,B ,C or D on ANSWER SHEET1.

Generally speaking, a British is widely regarded as a quiet, shy and conservative person who is _____21 only among those with whom be is acquainted. When a stranger is at present, he often seems nervous, _____ 22 embarrassed. You have to take a commuter train any morning or evening to _____23 the truth of this. Serious-looking businessmen and women sit reading their newspapers or dozing in a comer; hardly anybody talks, since to do so would be considered quite offensive.

_____24 , there is an unwritten but clearly understood code of behavior. which, _____ 25 broken,makes the offender immediately the object of _____ 26

It has been known as a fact that a British has a _____27 for the discussion of their weather and that, if given a chance, he will talk about it _____ 28 . Some people argue that it is because the British weather seldom _____ 29 forecast and hence becomes a source of interest and _____30 to everyone. This may be so. _____31 a British cannot have much _____32 in the weathermen, who, after promising fine, sunny weather for the following day, are often proved wrong _____33 a cloud over the Atlantic brings rainy weather to all districts! The man in the street seems to be as accurate or as inaccurate as the weathermen in his _____ 34

Foreigners may be surprised at the number of references _____35 weather that the British make to each other in the course of a single day. Very often conversational greetings are _____36 by comments on the weather. "Nice day, isn' t it? Beautiful day !" may well be heard instead of "Good morning, how are you?" _____37 the foreigner may consider this exaggerated and comic, it is worthwhile pointing out that it could be used to his advantage. _____38 he wants to start a conversation with a British but is _____ 39 to know where to begin, he could do well to mention the state of the weather. It is a safe subject which will _____40 an answer from even the most reserved of the British.

第 1 题

21.A.relaxed

B.frustrated

C.amused

D.exhausted

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第3题

开放串口中断的设置语句是__()

A.EA=1;EX0=1

B.EA=1;EX1=1

C.EA=1;ET0=1

D.EA=1;ES=1

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第4题

开放int0中断的正确指令是__()

A.EA=1;ET1=1

B.EA=1;EX0=1

C.EX0=1

D.EA=1

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第5题

有效地址EA的计算方法为()。

A.EA=基址+(变址-比例因子)+位移量

B.EA=基址+(变址×比例因子)+位移量

C.EA=基址+(变址+比例因子)+位移量

D.EA=基址+(变址×比例因子)-位移量

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第6题

图(a)所示桁架,力法基本结构如图(b)所示,力法典型方程中的系数δ11为( )。图(a)所示桁架,力法基本结构如图(b)所示,力法典型方程中的系数δ11为( )。

A.3.414l/EA

B.-4.828l/EA

C.4.828l/EA

D.2.0l/EA

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第7题

若A→2B的活化能为Ea,2B→A的活化能为Ea’。若加催化剂,则Ea和Ea’________________;加不同的催化剂,
则Ea的数值变化________________;提高反应温度,Ea和Ea’值________________;改变起始浓度后,则Ea________________。

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第8题

由于8031只能用外部存储器,EA端必须()。

由于8031只能用外部存储器,EA端必须( )。

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第9题

试证明: 设,Ea={p+aq:p,q∈Z),则有.

试证明:

试证明:  设,Ea={p+aq:p,q∈Z),则有.试证明:    设,Ea={p+aq:p,q∈,Ea={p+aq:p,q∈Z),则有试证明:  设,Ea={p+aq:p,q∈Z),则有.试证明:    设,Ea={p+aq:p,q∈.

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第10题

开放定时器T1中断的设置语句是__()

A.EA=1;EX0=1

B.EA=1;EX1=1

C.EA=1;ET0=1

D.EA=1;ET1=1

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第11题

对定时器T0进行关中断操作,需要复位中断允许寄存器的()。

A.EA和ET0

B.EA和EX0

C.EA和ET1

D.EA和EX1

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