绝对地租形成的根本原因是( )。
A．土地的有限性
B．土地所有权的垄断
C．土地经营权的垄断
D．农业资本有机构成低于社会平均资本有机构成
参考答案：B
What did the author think of his mother
A．She was stubborn.
B．She was p.
C．She did not care him very much.
D．She was not very intelligent.
缓解病人不适的首要措施是
A．使病人处于舒适体位
B．了解引起病人不适的原因
C．缓解疼痛
D．调整环境
E．给病人以心理支持
