单项选择题

Although specific concerns may determine the intent of a research project, its results are often ______.

A．unanticipated
B．beneficial
C．expensive
D．spectacular
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单项选择题
______, the factories had not closed, and those who needed work most were given a chance to survive during the econmic disaster.
A．Unintentionally
B．Mercifully
C．Importunately
D．Tragically
单项选择题
After completing her usual morning chores, Linda found herself ______ tired.
A．surprisingly
B．buoyantly
C．forcibly
D．unceasingly
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