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The computer brings both the benefits and dangers. The speaker means danger to ______ well-being of the people who are at computer terminals.
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The severe abnormalities of pregnant women who work with computer terminals is ______ higher than those of pregnant women who don't work with computer terminals.
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Exposing for long periods to the video screen causes disturbances to vision and ______.
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Why have some trade unions of workers involved with computer laid down their own guidelines?
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There are two groups of computer users. Which group, professional or amateur does the speaker think is in more danger?
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People working with computers have backache because they crouch over a (an) ______ keyboard.
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People who work in front of the screen not only suffer from the visual disturbance but also an ______ of the face.
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It seems that the electrostatic field of the video screen attracts dust from the atmosphere and ______ .
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What can a shaky or fuzzy image on the screen cause?
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The speaker mentioned five precautions for the terminal users. What kind of precautions are these?