阅读下面的文字，完成小题。 中国古典园林中“风”的文化意蕴 李金宇 在中国古典园

患者男，55岁。酒后12h觉中上腹痛，继之呕鲜红色血液200ml来急诊。体格检查：腹软，中上腹有压痛，肝未扪及，脾肋下1.5cm，血压正常。

为了明确诊断，宜先做的检查是（）

A.B超

B.上消化道钡餐检查

C.钡剂灌肠

D.选择性腹腔动脉造影

E.内镜检查

F.CT检查

The questions in this group are based on the content of a passage. After reading the passage, choose the best answer to each question. Answer all questions following the passage on the basis of what is stated or implied in the passage.

One of the biggest questions facing the art world today is the dilemma over the repatriation of cultural treasures. Although the subject has not been widely noted by the general public, in recent decades museums and art dealers have repeatedly faced off against the representatives of nations and ethnic groups whose cultural legacies have been robbed by the rapacious collecting of these so-called art experts. Advocates of repatriation have argued that cultural treasures should be returned to their nations of origin, both because of basic fairness and because the artwork and cultural artifacts in question are best understood within their local context.

Several prominent museums, most notably the British Museum in London and the Louvre in Paris, have defended themselves on the grounds that they can better protect and preserve these cultural treasures than can the developing nations and impoverished ethnic groups that frequently seek their return. They further argue that more people can see the treasures if they are proudly displayed in a major museum, as opposed to some poorly funded national museum in a backwater country; evidently, the quantity of viewers is more important than the relevance of the art and artifacts to the viewer.

The arguments of the museum curators fall apart in an instance such as the Elgin Marbles. These majestic marble sculptures, which once graced the Parthenon on the Acropolis in Athens, were stolen by Lord Elgin in the nineteenth century and given to the British Museum, which holds them to this day. The people of Athens have built a beautiful, modern museum on the Acropolis to display the Elgin Marbles and other treasures from the Greek cultural heritage, so there can be no valid argument that the Greeks are unable to house the sculptures properly. Furthermore, more people visit the Acropolis every day than visit the British Museum.

Of the following, the most appropriate title for the passage above would be:（）

A. The Elgin Marbles: Timeless Symbols of the Glory That Was Greece

B. The Role of Great Museums in the Preservation of Cultural Artifacts

C. Repatriation of Cultural Treasures: The British Museum’s Dirty Little Secret

D. The Value of Cultural Treasures in Defining National Identity

E. A Curious Curator: Lord Elgin and the Rise of the British Museum

咀嚼压力是指（）

A．在正常咀嚼运动中，咀嚼食物的力大约只为牙周组织所能支持的力量的一半，而在牙周组织中储存了另一半的支持能力

B．牙周膜面积

C．在实际咀嚼运动中，只有部分肌纤维参与了收缩运动产生的力量

D．在咀嚼运动中，咀嚼肌收缩时所能发挥的最大力量

E．力的一部分

【问题1】 该企业网络的核心层采用了千兆以太网技术，简述千兆以太网的主要技术特点及优点。

试述合成香料生产工艺特点