单项选择题

This teaching method is a ______ of many methods which have been used for decades in the country.

A．symposium
B．symphony
C．spectrogram
D．synthesis
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单项选择题
She never ______ to read the news but turned at once to the crossword on the last page.
A．indulged
B．troubled
C．exerted
D．frustrated
单项选择题
All the commodities sold in that shop are given one year' s ______.
A．assurance
B．warrant
C．guarantee
D．insurance
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