LOC和DME合装时，二者频率（）。
A.固定配对
B.随便配对
C.固定为九倍
D.固定为九分之一
参考答案：A
The capital city of the U. K. is . [ ]
A. London
B. Washington, D. C.
C. Canberra
An analyst has calculated the following ratios for a firm: Sales/Total Assets: 2.8 Net Profit Margin (%): 4 Return on Total Assets (%): 11.2 Total Asset/Equity: 1.6 The return on equity for this firm would be closest to:（）
A. 4.48%.
B. 6.40%.
C. 17.92%.
