Corruption is _______ problem in countries across the world, with developing countries often believed to be more serious, although there is no evidence to suggest this is _______case.
A.a; the |
B.the; a |
C.不填; the |
D.a; a |
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Corruption is _______ problem in countries across the world, with developing countries often believed to be more serious, although there is no evidence to suggest this is _______case.
A.a; the |
B.the; a |
C.不填; the |
D.a; a |
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