177- The passage illustrates clearly how ................ .
A) watercolour has changed landscape painting in Britain
B) watercolour slowly gave way to oils as an art form
C) British art galleries have collected their oil paintings and watercolours.
D) watercolour has come to be recognised in Britain as valid art form
E) watercolour is different in style and execution from oil painting
The unfavourable effects of cigarette smoking on the heart have usually been discussed, but the exact
basis for these effects has not been clarified. Some believe nicotine to be the culprit, and there has
been some experimental work in animals indicating that large doses of nicotine in conjunction with
cholesterol feeding and vitamin D could cause a disease of the arteries resembling that observed in
humans. An alternative explanation has been offered by other investigators who have pointed to the
possible role of carbon monoxide being inhaled with the cigarette smoke.
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