在教育目的中提出对人才的劳动技术水平方面的要求是在生产力水平发展到_________以后。

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