第0年至第n-1年每年现金流量为A,则其等值于第0年()。
A.A
B.B
C.C
D.D
参考答案:B
The policemen hurried to the spot of traffic accident where there was a large crowd of______.
A.looker-on
B.lookers-ons
C.looker-ons
D.lookers-on
炮制西瓜霜的辅助性药物是()
A.白矾
B.芒硝
C.甘草
D.生姜
E.石膏