在整个输气罐路系统安装完毕后，要进行（）实验来检查管路。

很多动物是“物理应用高手”，它们为了适应生存的环境，进化出了符合一定物理规律的身体部位。下列从物理学的角度给出的认识中正确的是

A．骆驼的脚掌很大，可增大压强

B．泥鳅的休表有层黏液，可增大摩擦

C．啄木鸟有尖硬的喙，可增大压强

D．蚯蚓腹部有许多刚毛，可减小摩擦

贮存危险化学品的建筑物或场所应安装（）。

A.电表

B.指示灯

C.避雷设备

D.监视器

甲与乙订立合同，规定甲应于10月1日交货，乙应于同年10月20日付款。9月底，甲发现乙财产状况恶化，无支付货款之能力，并有确切证据，遂提出终止合同，但乙未允。基于上述因素，甲于10月1日未按约定交货。依据《合同法》的规定，有关该案正确的表述是______。

A．甲有权不按合同约定的期限交货，除非乙提供了相应的担保

B．甲无权不按合同约定的期限交货，但可以要求乙提供相应的担保

C．甲无权不按合同约定的期限交货，但可以仅先交付部分货物

D．甲应按合同约定的期限交货，如乙不支付货款可追究其违约责任

下列选项中，属于设备开箱检查主要内容的是( )。

A．设备的数量、规格和型号全

B．生产许可证及许可证编号

C．“CCC”认证标志

D．设备运输费用核实

E．设备的出厂合格证及试验报告齐全

Narrative crept back into art through a side door marked fashion photography. In April 1967, French Vogue published a spread by Bob Richardson, the American photographer, that soon became a legend Informally christened " the Greek trip " by Richardson’s admirers, the spread featured Donna Mitchell, a striking brunet model, hanging out on the Aegean island of Rhodes with a male companion.

Of course, narrative never disappeared—it just went to the movies, and stayed, and stayed. But what had caused stories to be exiled from high art The idea of essence, and the equation of essence with goodness. Can you imagine Visual art is essentially composed of form, color, materials. Anything to do with content is extraneous and therefore to be associated with badness; therefore to be eliminated. Moreover, content, says this line of thought, is controlling. This means that a rose is the Virgin Mary (depending on what the meaning of " is " is). And art, like society, must be liberated from such hierarchically imposed values. What this argument overlooked, of course, is that narrative is a form in itself, not just a vehicle for content. Indeed, the ideology of formalism originated, in Soviet Russia, with the analysis of old folk tales. Narrative form, the analysis went, typically proceeds from an initial state of equilibrium through a series of destabilizing episodes, concluding with a heightened state of equilibrium at the end. Think Indiana Jones. You can plug whatever content you want in there as long as it creates the form. Each episode simply has to do with the work of creating disequilibrium.

A narrative does not, in other words, tell a story. A story is told to give listeners the pleasure of the narrative form. If you were to isolate the form of disequilibrium from the specifics of plot, you might arrive at something resembling the collected work of Cindy Sherman. Initially modeled after movie stills, Sherman’s pictures are not, of course, abstract. Over the years, in fact, their content has become increasingly elaborate. I see this as a form of generosity as well as a sign of advanced technical skills. Not since Giuseppe Arcimboldo (1527-1593), perhaps, has an artist contrived to turn the human figure into a more bountiful cornucopia for the eye.

Yet even the most visually splendid of Sherman’s images are minimalist, in that they reduce the narrative down to the precise moment when the center of gravity shifts. Perhaps some unheard word is spoken. A floorboard squeaks. From upstairs comes a thump. And a tentative state of equilibrium gives way to anxiety or dread. That moment, too, represents essence. What more do you need to know

The author’s attitude towards the idea of essence is（）

A. puzzled

B.critical

C. ironic

D. objective