单选题：Modern science fiction have political __________.

题目分类：理工类
题目类型：单选题
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题目内容：

Modern science fiction have political __________. A．concerned with the problems to solve in the future
B．to keep ahead of scientific advances
C．implication (涵义)
D．a current theme
E．read worldwide
F．arecurrent (反复出现的) theme

参考答案：

答案解析：

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