20世纪80年代发展中国家爆发债务危机的直接原因是( )
A.外债规模控制不当 B.外债使用不当 C.美国的“非公平贸易”原则 D.美国的“三高政策”
参考答案:D
淀粉为
A.润滑剂B.润湿剂C.黏合剂D.稀释剂E.崩解剂
What ________ you do if you _________ a teacher? [ ]
A.would, are
B.can, were
C.will, are
D.would, were