In the 1980 United States census, marital status was described under one of five categories: single, now married (but not separated), separated, divorced, widowed. In the category "separated," including both those who were legally separated and those who were estranged and living apart from their spouses, one million more women than men were counted.
Which of the following, if true, provide(s) or contribute(s) to an explanation for this result ？（）
Ⅰ. There are more women of marriageable, age than men of marriageable age in the United States.
Ⅱ. More of the separated men than separated women in the United States could not be found by the census takers during the census.
Ⅲ. Many more separated men than separated women left the United States for residence in another country.

A．Ⅰ only.

B．Ⅱ only.

C．Ⅲ only.

D．Ⅰ and Ⅱ only.

E．Ⅱ and Ⅲ only.

分部工程质量合格条件是（）

A.分部（子分部）工程所含分项工程的质量均应验收合格

B.一般项目全部合格

C.质量控制资料应完整

D.地基与基础、主体结构和设备安装等分部工程有关安全及功能的检验和抽样检测结果应符合有关规定

E.观感质量验收应符合要求