单项选择题

Modern athletes' results cannot be compared with those of ancient runners because ______.

A．details such as the time were not recorded in the past
B．the Greeks had no means of recording the results
C．they are much better
D．they are much worse
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单项选择题
How does the author like the common principle held in the pre-election poll
A．It was successful because it took all sections of the population into consideration.
B．It was successful because the publications sent out numerous questionnaires.
C．It was unsuccessful because it didn't take the composition of the electorate into consideration.
D．It was unsuccessful because it put emphasis on quality instead of quantity.
单项选择题
Gallup became a household name overnight because ______.
A．his performance in 1936 pre-election poll was excellent
B．he was the prophet of the moment
C．he founded a new scientific method of prediction
D．he was the founder of the Gallup Poll
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