单项选择题

The development of a thoroughly effective treatment for narcolepsy is regarded by the author as

A．possible,butnotveryimportant
B．interesting,buttoocostlytobepractical
C．promising,butmanyyearsoff
D．extremelyunlikely
E．highlyprobable
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单项选择题
OBSTINACY:
A．articulateness
B．impartiality
C．obedience
D．generosity
E．opposition
单项选择题
SINEWY:
A．significant
B．restrained
C．dishonest
D．frail
E．novel
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