单项选择题

The accuracy of scientific observations and calculations is always ______ the scientist' s time-keeping methods.

A．at the mercy of
B．in accordance with
C．under the guidance of
D．by means of
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单项选择题
Many artists believe that successful imitation, far from being symptomatic of a lack of originality, is the step in learning to be ______.
A．elegant
B．confident
C．creative
D．imaginary
单项选择题
The senior citizen expressed a sentiment which ______ profoundly to every Chinese heart.
A．drew
B．attract
C．appealed
D．impressed
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