Ⅰ型肾小管酸中毒反映（）
A.近端肾小管功能缺陷
B.远端肾小管功能缺陷
C.代谢性酸中毒
D.远端、近端肾小管均有障碍
E.代谢性碱中毒
参考答案：B
Rather than ____ on a crowded bus, Lisa preferred ____ her old bike that day. [ ]
A. ride; to ride
B. riding; ride
C. ride; ride
D. to ride; riding
阐述色素的光致变色机理及其应用？
