以下关于企业战略结构层次中的公司战略的说法正确的有( )。 A．公司战略又称为企业

在急流滩出现的三角水是由（）组成的。

A、斜流、夹堰水、回流

B、斜流、回流出水、夹堰水

C、夹堰水、回流出水、倒插水

D、斜流、夹堰水、倒插水

哪些与妊娠高血压综合征关系最密切：

A．羊水过多

B．粘连胎盘

C．前置胎盘

D．胎盘早剥

E．IUGR

简述传统物资流通体制的基本特征。

In the idealized version of how science is done, facts about the world are waiting to be observed and collected by objective researchers who use the scientific method to can’y out their work. But in the everyday practice of science, discovery frequently follows an ambiguous and complicated route. We aim to be objective, but we cannot escape the context of our unique life experience. Prior knowledge and interest influence what we experience, what we think our experiences mean, and the subsequent actions we take. Opportunities for misinterpretation, error, and self-deception abound.

Consequently, discovery claims should be thought of as protoscience. Similar to newly staked mining claims, they are lull of potential. But it takes collective scrutiny and acceptance to transform a discovery claim into a mature discovery. This is the credibility process, through which the individual researcher’s me, here, now becomes the community’s anyone, anywhere, anytime. Objective knowledge is the goal, not the starting point.

Once a discovery claim becomes public, the discoverer receives intellectual credit. But, unlike with mining claims, the community takes control of what happens next. Within the complex social structure of the scientific community, researchers make discoveries; editors and reviewers act as gatekeepers by controlling the publication process; other scientists use the new finding to suit their own purposes; and finally, the public (including other scientists) receives the new discovery and possibly accompanying technology. As a discovery claim works it way through the community, the interaction and confrontation between shared and competing beliefs about the science and the technology involved transforms an individual’s discovery claim into the community’s credible discovery.

Two paradoxes exist throughout this credibility process. First, scientific work tends to focus on some aspect of prevailing Knowledge that is viewed as incomplete or incorrect. Little reward accompanies duplication and confirmation of what is already known and believed. The goal is new-search, not re-search. Not surprisingly, newly published discovery claims and credible discoveries that appear to be important and convincing will always be open to challenge and potential modification or refutation by future researchers. Second, novelty itself frequently provokes disbelief. Nobel Laureate and physiologist Albert Azent-Gy6rgyi once described discovery as "seeing what everybody has seen and thinking what nobody has thought." But thinking what nobody else has thought and telling others what they have missed may not change their views. Sometimes years are required for truly novel discovery claims to be accepted and appreciated.

In the end, credibility "happens" to a discovery claim—a process that corresponds to what philosopher Annette Baier has described as the commons of the mind. "We reason together, challenge, revise, and complete each other’s reasoning and each other’s conceptions of reason.

According to the first paragraph, the process of discovery is characterized by its（）

A. uncertainty and complexity

B. misconception and deceptiveness

C. logicality and objectivity

D. systematicness and regularity

下列特点属于正常一岁儿童的特点的是（）。

A.一岁时身长平均约为80cm

B.一岁时婴儿体重平均约为15kg

C.一岁时婴儿头围平均约为50cm

D.一岁后乳牙未萌出者为乳牙萌出迟缓