干性咳嗽的常见病因是()
A.慢性支气管炎
B.支气管扩张症
C.空洞型肺结核
D.肺脓肿
E.肺癌
参考答案:E
Study the following data, calculate the return on equity for 2007 and 2008.
A.
B.2007
C.2008
D.Pre-interest profit margin (EBIT/S)
E.0.3
F.0.15
G.Asset turnover (S/A)
H.2
I.2
J.Leverage multiplier (A/E)
K.2
L.2
M.Tax retention rate (1-t)
N.0.8
O.0.8
P.Interest expense ratio (I/A)
Q.0.06
R.0.06
孢子培养基