下列模式中, ______ 是用户模式。A.内模式 B.外模式 C.概念模式 D.逻

题型:单项选择题

问题:

下列模式中, ______ 是用户模式。

A.内模式

B.外模式

C.概念模式

D.逻辑模式

考点:计算机等级考试VISUALBASIC二级VISUALBASIC笔试87
题型:单项选择题

粪便中镜检细胞报告结果为“++”说明每高倍视野中的细胞数大多为

A.超过5个以上

B.超过10个以上

C.超过15个以上

D.超过20个以上

E.数量多,不能计数

题型:单项选择题

分布式数据库系统不具有的特点是 ______。

A.分布式

B.数据冗余

C.数据分布性和逻辑整体性

D.位置透明性和复制透明性

题型:单项选择题

肝、肋脊角叩击痛

题型:单项选择题

亚热带常绿阔叶林一般分为()。

A.乔木和草本两层

B.乔木和灌木两层

C.灌木和草本两层

D.乔木、灌木和草本三层

题型:单项选择题

It is very difficult to prove today that a painting done two or three hundred years ago, especially one without a signature or with a questionably authentic signature, is indubitably the work of this or that particular artist. This fact gives the traditional attribution of a disputed painting special weight, since that attribution carries the presumption of historical continuity. Consequently, an art historian arguing for a deattribution will generally convince other art historians only if he or she can persuasively argue for a specific reattribution.
Which one of the following, if true, most ply supports the position that the traditional attribution of a disputed painting should not have special weight

A.Art dealers have always been led by economic self-interest to attribute any unsigned paintings of merit to recognized masters rather than to obscure artists.

B.When a painting is originally created, there are invariably at least some eyewitnesses who see the artist at work, and thus questions of correct attribution cannot arise at that time.

C.There are not always clearly discernible differences between the occasional inferior work produced by a master and the very best work produced by a lesser talent.

D.Attribution can shape perception inasmuch as certain features that would count as marks of greatness in a master’s work would be counted as signs of inferior artistry if a work were attributed to a minor artist.

E.(E) Even though some masters had specialists assist them with certain detail work, such as depicting lace, the resulting works are properly attributed to the masters alone.

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