下列反应产物中产率最高的为（  ）
A.
B.
C.
D.

单项选择题的对映异构体是 （） A、 B、 C、 D、

多项选择题5. The wind began to blow fiercely, and the rain was getting harder with each passing second. Palm fronds were blowing across the road like leaves. The rain was now coming at me horizontally instead of vertically, blowing from left to right. Within a few minutes, I couldn’t see the road directly in front of my car. The force of the rain fell and sounded like a hundred fire hoses aimed directly at the left side of my car. I slowed down to a literal crawl and tried to continue without driving into the lake or a ditch.