We have strong ________ for believing that the newly-invented material is not only popular but also a monument to the eco-friendly lifestyle.

A．grounds

B．reasons

C．causes

D．purposes

卵巢的形态学特征正确的是（）

A.成年妇女卵巢大小约4cm×3cm×1cm

B.卵巢表面有腹膜覆盖

C.卵巢白膜是一层平滑肌组织

D.髓质内含数以万计的原始卵泡

E.卵巢内侧以骨盆漏斗韧带与子宫相连