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A number of persons have expressed concern about possible health dangers to workers who use devices called video-display termina
A number of persons have expressed concern about possible health dangers to workers who use devices called video-display termina
admin
2011-04-26
62
问题
A number of persons have expressed concern about possible health dangers to workers who use devices called video-display terminals (终端) or VDTs.
These are the devices used to show computer information. Some reports link VDTs to health disorders including eye problems and muscle problems. Even the health of the pregnant women and their unborn babies is said to be endangered. Video-display terminals produce low levels of the electromagnetic radiation(电磁辐射). Experts say most modern VDTs have been designed to limit the dangers from such radiation. However, study shows that even low levels of electromagnetic radiations can affect the growth of the cells. As a result, some doctors advise women to stop working with VDTs while they are pregnant.
One study found women who work with VDTs in early pregnancy are more likely than others to have their pregnancy end unexpectedly.
Researchers said that this does not necessarily mean that VDTs themselves cause problems. Some experts said the findings show working conditions, not the machines, cause the problems. Law makers in m6re than American states have proposed bills to control working conditions for VDT operators.
According to the passage we know most modern VDTs ______.
选项
A、can change the working conditions for the operators
B、can limit the dangers from the electro-magnetic radiation
C、can also affect the growth of the cells
D、can protect the health of the computer operators
答案
C
解析
本题为细节推理题。文章第六和七句指出,尽管大多数现代 VDTs 能限制电磁辐射所带来的危险,但有研究表明就是较低的电磁辐射也能影响到人体细胞的生长。故而推断现代 VDTs 对细胞生长还是有影响的。
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