枳实的升压有效成分有：（）

A.挥发油

B.辛弗林

C.橙皮苷

D.柚皮苷

E.N-甲基酪胺

Which of the following are the most commonly used performance measures of evaluating whether or not work is being accomplished as planned at any given point of time ？（）

A．PV & A

B．AC，EV & P

C．CV & S

D．SPI，EV & A