葡萄糖在肾小管的重吸收部位，仅限于（）
A.集合管
B.髓袢细段
C.远端小管
D.近端小管
E.髓袢升支粗段
参考答案：D
"The president's report," a smile on his face, he continued, "___ to several hot topics, discusses how to increase peasants' income．"
A．referring
B．refers
C．having referred
D．referred
