非复杂性尿路感染在下列哪些情况时会发生慢性肾盂肾炎（）
A.多囊肾
B.糖尿病肾病
C.肾结石
D.膀胱-输尿管反流
E.肾发育不良
参考答案：C, D
下列各组对象属于同分异构体的是（ ）
A．葡萄糖与果糖
B．甲烷与乙烷
C．淀粉与纤维素
D．16O与18O
What does the passage mainly discuss a. The endangered species in Glacier National Park. b. The protection of lands surrounding Glacier National Park. c. Conservation laws imposed by the state of Montana. d. Conservation laws imposed by Congress.
