38岁已婚女性，月经稀发，间断闭经，原发不孕，曾诊断为多囊卵巢综合征，未经常规治疗，最近 * * 不规则少量出血5个月。

为进一步确诊，下列辅助检查方法哪项最可靠

A．宫颈涂片细胞学检查

B．B超检查子宫附件

C．子宫腔冲洗细胞学检查

D．分段诊刮组织病理学检查

E．官腔镜或腹腔镜检查

Ten years ago the population of our village was_____that of theirs.

A．as twice large as

B．twice as large as

C．twice as much as

D．as twice much as