E花环形成细胞的正常值是（）
A.50％～10％
B.15％～20％
C.20％～30％
D.50％～80％
E.90％以上
参考答案：D
Had you listened to the doctor, you _______ all right now. [ ]
A. are
B. would be
C. were
D. would have been
