封闭式基金的交易价格主要取决于（ ）。
A．基金总资产
B．供求关系
C．基金净资产
D．基金负债
参考答案：B
Don't forget goodbye to me when you . [ ]
A. saying; leave
B. saying; are leaving
C. to say; leave
D. to say; are going to leave
红细胞上有B抗原，血清中有抗A抗体，血型是( )
A．A型B．B型C．O型D．AB型E．亚型
