构成肾单位的结构是[ ]
A．肾小球和肾小囊
B．肾小体和肾小管
C．肾小球和肾小管
D．肾皮质和肾髓质
答案：B
— Peter, you are in the new school for two weeks. How are you getting on with your classmates?
— ______. [ ]
A. Very well
B. Well done
C. That's OK
D. I'm fine
物质状态的变化必然导致（）的变化。
A.物业财产状况
B.物业管理状况
C.物业服务状况
D.产权所有关系
