Simon：How’S things？Jack：Fine，thanks．How are you doing？Simon：__________．Just finishing off a few things before the holidays．

A . 比绝对校正因子容易求得 B . 相对校正因子没有单位 C . 相对校正因子仅与检测器类型有关 D . 不需要使用纯物质求算

A . 构成虐待罪 B . 构成故意杀人罪 C . 构成遗弃罪 D . 构成故意伤害罪

A . spend B . cost C . give D . pay for

A . One object is created B . Two objects are created C . Three objects are created D . One reference variable is created E . Two reference variables are created F . Three reference variables are created.

M: It's coming along. But I've been staring at the computer screen for hours and my eyes hurt. W: Yeah Typing the words on the screen really make your eyes dry and tired. You should take a break. M: I can't. The deadline is approaching. W: You know, I read about computers and eye problems recently. The article says that they are usually caused by not blinking your eyes enough. M: Blinking？ I thought I just needed new glasses. W: when you blink, the movement of closing and opening your eyes, even though it happens really fast relaxes your eyes. M: That makes sense. W: People using computer tends to stare at the screen and blink less often than they normally would. M: That is what I am doing. And I am suffering from the dry eyes. W: That is one of the typical symptoms. M: But what does it have to do with the computer？ W: The article I read about the office workers found that the workers averagely blink 22 times a minute when relaxed But just 7 times a minute while looking at the text on a computer screen. M: Wow That's quite a difference. W: Yeah. So you need to blink your eyes and take a break from the computer M: I wonder if using some kind of eye-drops will make me feel better. W: That might help.But the best prescription is to take a break and rest your eyes M: Ok. Let's go get some coffee. I can finish this later tonight. (23) A．Something goes wrong with his computer. B．He can not finish the documents in time. C．The computer screen is hurting his eyes. D．He can not understand the article.

A．presiding B．poring C．pondering D．presuming

A、Not,bad,what about you? B、Well,nothing special. C、None

A．700. B．900. C．We don't know.

A．75 pence. B．1.30 pounds. C．2.05 pounds.

We judge race usually from the coloring of the skin: a white race, a brown race, a yellow race and a black race. But【52】you were to remove the skin you could not tell anything about the race to which the individual belonged. There is nothing in physical structure, the brain or the internal organs to【53】a difference. There are four types of blood. All types are found in every race, and no type is distinct to any race. Human brains are the【54】No scientists could examine a brain and tell you the race to which the individual belonged. Brains will【55】in size, but this occurs within every race.【56】does size have anything to do with intelligence. The largest brain ever examined belonged to a person of weak【57】. On the other hand, some of our most distinguished people have had【58】brains. Mental tests which are reasonably【59】show no differences in intelligence between races. High and low test results both can be recorded by different members of any race.【60】equal educational advantages, there will be no difference in average standings, either on account of race or geographical location. (51) A．complete B．full C．total D．whole

A．presiding B．poring C．pondering D．presuming

A．A.they are not ok B．B.how are you C．C.thanks D．D.not too bad

A．96 dollars B．64 dollars C．80 dollars

A．off B．out C．alone D．over