排水系统的体制分几类?
参考答案:
排水系统的体制,—般分为合流制和分流制两个大类。
—Did you finish reading the book yesterday?
—No. I just went the third line on page 86.
A.as long as
B.as much as
C.as far as
D.as many as
决定国债发行条件的关键是()。
A.国债的认购方式
B.国债的发行方式
C.国债的交易方式
D.国债的偿还方式