单项选择题

During the past ten years there have been dramatic changes in the international situation.

A. permanent
B. powerful
C. striking
D. practical
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The government is debating the education laws.
A. discussing
B. defeating
C. delaying
D. declining
单项选择题
His health had deteriorated while he was in prison.
A. became better
B. became worse
C. became stronger
D. became weaker
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