血清胆红素测定原理是利用()反应法。
参考答案:重氮
In a sports team each player has a clear role, and there are few __________ when members are
uncertain of their roles. [ ]
A. occasions
B. positions
C. chances
D. situations
在预算定额的编制过程中,已知基本用工是20工日,超运距用工为2工日,辅助用工为3工日,人工幅度差系数为10%,则该预算定额人工幅度差为( )工日。
A.2.5
B.2.3
C.2.2
D.2.0