我国最早的函授教学机构是1914年商务印书馆成立的函授学社。
参考答案：对
For an investment portfolio, the Sharpe ratio is best described as a(n): （）
A. Relative measure that indicates risk per unit of mean return.
B. Absolute measure that indicates risk per unit of mean return.
C. Relative measure that indicates mean excess return per unit of risk.
群众义务消防的“四懂、四会、三能”的具体内容是什么？
