球旁细胞来源于（）。
A、近曲小管上皮
B、球内系膜细胞
C、远曲小管上皮
D、入球小动脉平滑肌
E、出球小动脉平滑肌
参考答案：D
—Do you think that the 11th Chinese National Games were a success?
—Yes，__________ ！It couldn't be__________ .
A．relatively；better
B．approximately；worse
C．absolutely；better
D．fortunately；worse
下列国家属于温带大陆性气候的是 [ ]
A、莫斯科
B、伦敦
C、上海
D、开罗
