有16克盐,加______克水就能使所得盐水的含盐率是40%.
16÷40%-16,
=40-16,
=24(克);
答:加24克水就能使所得盐水的含盐率是40%.
故答案为:24.
Effective duration is more appropriate than modified duration as a measure of a bond’s price sensitivity to yield changes when:()
A. the bond contains embedded options.
B. yield curve changes are not parallel.
C. the bond is a floating rate security.
意识的反作用或能动性,从根本上说是:( )
A.对客观世界的反映
B.对客观世界的改造
C.正确发挥意识的主观能动性
D.对人类自身的改造