患者35岁，有HIV感染史，结合图像，最可能的诊断为（）
A.细胞淋巴瘤
B.组织胞浆菌病
C.肺癌转移
D.结核
E.以上都不是
参考答案：A
Visual FoxPro是一种【 】。
A．数据库系统
B．数据库管理系统
C．数据库
D．数据库应用系统
Which of the following statements regarding liquidity risk is FALSE（）
A. The bid-ask spread is one measurement of liquidity risk.
B. Emerging markets typically have more liquidity risk than established markets.
C. Liquidity risk is not important to an investor who intends to hold a security until maturity.
