正确答案: D

经济基础和上层建筑的矛盾

题目：社会基本矛盾有两对，一对是生产力和生产关系的矛盾，另一对是( )

解析：D

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举一反三的答案和解析：

[单选题]某工程施工不慎塌方，引起工伤事故，对严重受伤病人的处理首先是( )

治疗窒息

[单选题]According to the passage, the earth in its very early period was ______.

in molten state

解析：

42．答案为A。根据第一段第二、三句，the earth at some time in its very early history became hot enough to melt the materials from which it was formed。While in this molten state作出该项选择。

[单选题]在人格差异中，其有核心地位的是( )

性格差异

[单选题]喉软骨支架中，唯一完整的歙骨环是( )

环状软骨

[单选题]下颌神经的出颅部位是 （ ）

卵圆孔

[单选题]书法艺术产生于__________。

中国