A.
B.
C.
D.
答案:B
The professor made a _____ that his student will be the most successful person in the world. [ ]
A. prediction
B. promise
C. plan
D. contribution
当企业息税前资金利润率高于借入资金利息率时,增加借入资金,可以提高自有资金利润率。 ( )