单项选择题

The logic of scientific development is (such) that (separates) groups of men working (on) the same problem in (far-scattered) laboratories are likely to arrive at the same answer at the same time.

A．such
B．separates
C．on
D．far-scattered
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单项选择题
Without telephone it would be impossible to carry on the functions of ____________ every business operation in the whole country.
A．practically
B．preferably
C．precisely
D．presumably
单项选择题
There were many people present and he appeared only for a few seconds, so I only caught a ____________ of him.
A．glance
B．glimpse
C．look
D．sight
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