Problems common to most countries include the social, economic ______ problems.
A、
and politics
B、
and with government
C、
of government
D、
and political
【正确答案】
D
【答案解析】
解析：此处为一个并列结构，正确选择应该和前面的"social，economic"两个词在形式上一致，都为形容词才行。
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