当资本的边际效率大于利息率时，厂商继续借款进行投资仍有利可图。
参考答案：对
妊娠分娩时的NAP积分可（）
A.减低
B.轻度减低
C.正常
D.轻度增高
E.增高
Liu Xiang, 28, is an Olympic winner in the _____ hurdles(踌栏). We're proud of him.[ ]
A. 110-metre
B. 110-metres
C. 110 metres
D. metres
