工程造价具有( )特点。
A.个别性、差异性
B.动态性
C.概括性
D.大额性
E.层次性
参考答案:A,B,D,E
—Have you shown the visitors around our school, Peter?
—Yes, I _____ it after the first class. [ ]
A. have done
B. did
C. had done
D. will do
烧伤休克静脉输液应()
A.均匀输入
B.先慢后快
C.先快后慢
D.间断补充
E.待生化检验报告