题目内容：
马克思主义政治经济学研究生产关系时必须联系（ ）
A．生产力和上层建筑
B．生产方式
C．经济基础
D．经济规律
参考答案：
选择题：马克思主义政治经济学研究生产关系时必须联系( )
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- 题目类型：选择题
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Which of the following is true according to the passage? Fluvaccinesnowmainlyus
Which of the following is true according to the passage?Flu vaccines now mainly use egg-based technol
The foremost reason why the egg－based method is defective lies in_____. thecomp
The foremost reason why the egg-based method is defective lies in_____.the complex process of vaccine
in spite of far from rather than by means of
in spite of far from rather than by means of
The writer’s purpose in writing the text is to 。
The writer’s purpose in writing the text is to 。A. show the relationship between parents and children
针灸治疗胆囊炎的主穴是
针灸治疗胆囊炎的主穴是A.胆囊穴、日月、阳陵泉、胆俞 B.胆囊穴、中脘、内关、胆俞C.期门、日月、肝俞、内关 D.梁门、日月、太冲、胆俞