—He       to the meeting. Have you informed him of it?

—Sorry. I       to.

A．hasn’t come; am going

B．didn’t come; have forgotten

C．hasn’t come; forgot

D．doesn’t come; will have

核素图像融合技术的最主要目的是

A．了解病灶部位的代谢与血流变化

B．病灶区解剖密度的变化

C．病灶区解剖形态的变化

D．提高探测病灶的敏感性

E．判断病灶大小