She bought________eggs yesterday, but there were________them broken. [      ]

A. two scores of; scores of

B. scores of; two scores of

C. scores of; two score of

D. score of; two scores

下列哪项不是成熟卵泡的典型B超特征

A．卵泡周围出现透声环

B．卵泡内出现密度较高光点，边缘不连续或呈锯齿状

C．卵泡液增多，边界清晰，透亮度好

D．卵泡直径>17～18mm

E．80%成熟卵泡可见卵丘结构