[单项选择]The average wavelength of visible light is 2,000 times ______ the diameter of an atom.
A. much as
B. greater than
C. as great
D. more than that

[单项选择]能够将表单的Visible属性设置为.T.，并使表单成为活动对象的方法是______。
A. Hide
B. Show
C. Release
D. SetFocus

[单项选择]Don't go ______ the street before the light turns green.


A. over
B. across
C. through

[单选题] We couldn't see（） because the light in the room was poor.
A. enough clear
B. clear enough
C. enough clearly
D. clearly enough

[单项选择]"This light is too ______ for me to read by. Don't we have a brighter bulb" said the elderly man.
A. dim
B. slight
C. mild
D. minute

[单项选择]

Text 2
SoBig. F was the more visible of the two recent waves of infection because it propagated iself by e-mail, meaning that victims noticed what was going on. SoBig. F was so effective that it caused substantial disruption even to those protected by anti-virus software. That was because so many copies of the virus spread (some S00,000 computers were infected) that many machines were overwhelmed by messages from their own anti-virus software. On top of that, one common counter-measure backfired, increasing traffic still further. Anti-virus software often bounces a warning back to the sender of an infected e-mail, saying that the e-mail in question cannot be delivered because it contains a virus. SoBig. F was able to spoof this system by "harvesting" e-mail addresses from the hard disks of infected computers. Some of these addresses were then sent infected e-mails that had been doctored to look as though they had come from other harvested addresses. The l
A. sending them an overpowering number of messages
B. harvesting the addresses stored in the computers
C. infecting the computers with an invisible virus
D. destroying the anti-virus software of the computers

[单项选择]LIGHT : COLOR ::


A. radiation: temperature
B. celerity : span
C. quality : quantity
D. sound : pitch
E. (E) strength : stress

[单项选择]DIAPHANOUS : LIGHT ::
A. visible : sight
B. unbreakable : glass
C. porous: liquid
D. slippery : glue
E. reflective: hamper

[单项选择]Statistics show that the average family size increases in inverse ratio to the mother' s years of education.（）
A. 统计数字表明，按平均数计算．，母亲受教育年限越长，她的家庭人口就越少。
B. 统计数字表明，家庭平均人口的增长与母亲受教育的年限成反比。
C. 统计数字表明，母亲受教育的时间越长，她的家庭就越大。
D. 统计数字表明，母亲受教育的水平随着她的家庭人口的增多而增高。

[单项选择]What was London's average maximum summer temperature in the early 1970s


A. 22.5℃.
B. 20.5℃.
C. 21.5℃.
D. 1℃.

[单项选择]The author regards the average citizen's comprehension of the principles of democracy as ______.


A. critical dismay
B. jealous resentment
C. arrogant indifference
D. sentimental reverence

[单项选择]How much did the Dow Jones Industrial Average fall


A. More than 17 percent.
B. More than 60 points.
C. Almost 2 points.
D. More than 16 points.

[单项选择]From the first paragraph we know the average person thinks ______.


A. the digital age is far away
B. digital is too complicated for him
C. digital age is dreadful
D. both A and B

[单项选择]What is the average age of a game player


A. 20.
B. 29.
C. 19.
D. 39.

[单项选择]The average speed of a ball hit by a Pingpang racquet (球拍)is the ______ among all ball games.


A. lowest
B. highest
C. quickest
D. most full