单项选择题

His inability to learn foreign languages was an ______ to his career, he felt very affliction.

A．occurrence
B．obstacle
C．disturbance
D．shortage
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单项选择题
The world's governments have done ______ nothing to combat the threat of nuclear accidents.
A．rarely
B．nearly
C．barely
D．intrinsically
单项选择题
Although a few contemporaries ______ the book, most either ignored or mocked it.
A．degraded
B．reconciled
C．ridiculed
D．appreciated
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