Earned value analysis is an example of （）.

It has been found that some government leaders ______ their power while in office to get illegal benefits

for themselves. [ ]

A. employ

B. take

C. abuse

D. achieve

2004年版日元纸张的颜色是（）

不能反映肝内或肝外胆汁淤积的实验是（）

A.血清一分钟胆红素测定

B.血清γ-GT

C.血清总胆固醇测定

D.血清AST及其同工酶

E.血清总胆红素测定

记账式债券因为发行和交易无纸化，所以效率高、成本低且( )。

A．流动性高

B．交易安全

C．灵活性高

D．交易方便