无尿是指24小时尿量少于（）
A.5ml
B.10ml
C.50ml
D.100ml
E.400ml
参考答案：D
Tom__________ Disneyland. He is still there.[ ]
A. has been to
B. has gone to
C. went to
D. goes to
什么是挠度计算的“最小刚度原则”按照最小刚度原则计算挠度是否可以满足工程要求为什么
