单选题：导致肾小球滤过率降低的因素是

题目内容：

导致肾小球滤过率降低的因素是 A．血浆胶体渗透压减低
B．囊内压减低
C．肾小球毛细血管血压减低
D．肾交感神经被抑制
E．动脉血压从180mmHg降低到80mmHg

参考答案：

答案解析：

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