( )不是签证时必须准备的材料。 A．护照 B．本人简历 C．对方公司邀请信

--- Shall we walk around the park or go for a bike ride?

--- _________. They are both good activities to me.[ ]

A. Yes, I like them very much

B. It makes no difference to me

C. That’s all right

D. I’d prefer a bike ride

It's commonly acknowledged that infant mortality has declined because of recent medical ______ and a higher standard of living.

A．recoveries

B．discoveries

C．coverage

D．leverage

作为农耕文明 * * 与文化集结地和辐射中心的都城，承载着深厚的历史底蕴，而从西汉、唐和北宋都城的城市布局上可以看出，城市在功能上呈现出新的变化趋势。这突出反映了

A．工商皆本的主流思想

B．学术文化的活跃

C．农业和手工业的发达

D．城市商品经济的发展

县级疾病预防控制机构应在接到流脑报告后48小时内，派人对报告病例开展流行病学调查。

简述我国《物权法》规定的物权种类。