题干
—Why didn't you cry for help when you were robbed (被抢劫)?
—If I opened my mouth, they might find my four gold teeth. That would be !
A：bad
B：much worse
C：worst
D：the worst
答案(点此获取答案解析）
B
羊一定能产生aY的精子
豌豆（Dd）产生雌雄配子数量及比例为D：d=1：1