及时、全面、准确地记录对外投资的价值变动和投资收益情况，是加强（）的管理。 A.责任

现在社会存在着一些现象，如：某单位不招女生，某单位不要专科生，不要乙肝携带者……这些招聘条件，在专家学者眼里都是就业歧视。对这些现象，说法正确的有（   ）

①是对人的尊严的不尊重

②没有看到每个人都有与众不同的地方

③受歧视的人不能自暴自弃

④是社会中正常的现象

A．①②③

B．②③④

C．①②③④

D．①②④

强直性脊柱炎常累及

A．腰椎

B．骶髂关节

C．肋椎关节

D．颈椎

E．胸椎

数码相机与计算机之间的图像传输方式有（）、红外传输和电缆传输。

A.协议传输

B.卡式传输

C.USB传输

D.视频传输

Ounce for ounce, blends of different artificial sweeteners match any individual artificial sweetener in sweetening power. When used to sweeten food, blends greatly decrease the likelihood that consumers will exceed acceptable daily intakes for individual sweeteners. Blends should therefore be used, rather than single sweeteners alone, since blends are clearly more healthful, yet equally effective.
The argument above depends on which of the following assumptions

A．When ingested together, different artificial sweeteners in the blends do not interact in a way that makes them harmful to human health.

B．Different artificial sweeteners, when used together in food, do not contribute a more desirable flavor to the food than would any one of them by itself.

C．The acceptable daily intake for any given artificial sweetener is a conservative figure that could probably be greatly exceeded at little or no risk.

D．Consumers who substitute artificial sweeteners for sugar in their diets generally keep track of their daily intake of different sweeteners.

E．(E) The ill effects on health produced by the intake of excessive quantities of any single artificial sweetener cannot be reversed by reducing intake later.

国际人力资本流动产生的经济影响之一表现为人力资本流动的技术知识外溢效应，即：流入地区向周围其它地区的（）等的转移。

A.商品和劳务

B.知识和服务

C.商品和技术

D.知识、技术和信息