男性，37岁，突然发热、畏寒、咳嗽、咳脓性痰，黏稠，血白细胞20×10/L，胸片：右上肺大叶实变影，叶间隙下坠，诊断可能为（）。

A.链球菌肺炎

B.克雷伯杆菌肺炎

C.葡萄球菌肺炎

D.肺结核，干酪性肺炎

E.支原体肺炎

Which of the following statements concerning security valuation is FALSE（）

A. Accounting methods may differ substantially between countries.

B. To value any security, you need to know the projected cash flows, their timing, and the required rate of return.

C. If the return on new investments is less than the return the firm is earning on its existing investments, the firm is considered a growth firm.