政策性银行的主要资金来源( )。
A．财政拨款
B．吸收公众存款
C．买卖企业债券
D．买卖外汇
参考答案：A
Jasper is a great painter.He is ____ Picasso. [ ]
A. the same great as
B. as great painter as
C. as great a painter as
D. such great a painter as
PGP的密钥如何管理？
