They did in my year (only from Christ's, that I've heard of) but that was 5 application cycles ago now. And even if you got an EE offer, realistically you'd be expected to get AAA anyway - they'd still let you in but if you pissed about in your A-levels, you'd need to pull your socks up pretty sharpish.
Besides, getting AAA is a doddle compared with passing all your MB exemptions once you get here.