负责世界银行、亚洲开发银行贷款、担保和联合融资的对外谈判与磋商业务的行业主管部门是()。
A.国家发展改革委
B.财政部
C.交通部
D.商务部
参考答案:B
3千克的铁块比3千克的棉花重.______.
.
――Oh, what a pity! All the tickets were sold out.
――I'm sure we_______ two, but you were not quick enough.
A.could buy
B.had bought
C.would buy
D.could have bought