当航班安排发生矛盾时，优先的次序为（）。 A.季节性定期航班，长期定期航班，不定期航

随着中国的崛起，中国对世界的影响将与日俱增。正如邓 * * 同志所说：“所谓多极，中国算一极。中国不要贬低自己，怎么样也算一极。”据此回答1～4题。

1．对世界多极化的发展趋势，下列认识正确的是      [     ]

①多极化已经实现  

②多极化正在顺利发展  

③多极化不可逆转  

④多极化只是一种趋势，尚未实现   

A．①②  

B．②③  

C．③④    

D．①④

2．世界多极化的发展趋势在本世纪日趋明显，是因为[     ]

A．联合国的地位和作用日益加强   

B．区域性国际组织广泛建立   

C．主要霸权国家的衰落   

D．多个政治经济力量中心的崛起

3．建立多极化世界格局已成为各国共识。多极化 [     ]

①有利于抑制霸权主义和强权政治

②有利于促进世界的和平与发展

③有利于消除国家间的利益冲突

④有利于形成多国称霸的局面   

A．①②    

B．②③    

C．③④   

D．①④

4．中国要成为世界上的“一极”，其根本途径是  [     ]

A．参与国际竞争    

B．融入国际社会

C．反对单边主义    

D．提高综合国力

汽轮机热态启动时，若出现负胀差，其主要原因是（）。

Mark Rothko
Mark Rothko, one of the greatest painters of the twentieth century, was born in Daugavpils, Latvia in 1903. His father emigrated to the United States, afraid that his sons would be drafted into the Czarist army. Mark stayed in Russia with his mother and older sister; they joined the family later, arriving in the winter of 1913, after a 12-day voyage.
Mark moved to New York in the autumn of 1923 and found employment in the garment trade and took up residence on the Upper West Side. It was while he was visiting someone at the Art Students League that he saw students sketching a nude model. According to him, this was the start of his life as an artist. He was twenty years old and had taken some art lessons at school, so his initial experience was far from an immediate calling.
In 1936, Mark Rothko began writing a book, which he never completed, about the similarities in the children’s art and the work of modern painters. The work of modernists, which was influenced by primitive art, could, according to him, be compared to that of children in that "child art transforms itself into primitivism, which is only the child producing a mimicry of himself." In this same work, he said that "the fact that one usually begins with drawing is already academic. We start with colour.
It was not long before his multiforms developed into the style he is remembered for; in 1949 Rothko exhibited these new works at the Betty Parsons Gallery. For critic Harold Rosenberg, the paintings were a revelation. Rothk0 had, after painting his first multiform, secluded himself to his home in East Hampton on Long Island, only inviting a very few people, including Rosenberg, to view the new paintings. The discovery of his definitive form came at a period of great grief; his mother Kate died in October 1948 and it was at some point during that winter that Rothko chanced upon the striking symmetrical rectangular blocks of two to three opposing or contrasting, yet complementary colours. As part of this new uniformity of artistic vision, his paintings and drawings no longer had individual titles; from this point on they were simply untitled, numbered or dated; however, to assist in distinguishing one work from one another, dealers would sometimes add the primary colours to the name. Additionally, for the next few years, Rothko painted in oil only on large vertical canvasses. This was done to overwhelm the viewer, or, in his words, to make the viewer feel enveloped within the picture.
On February 25, 1970, Oliver Steindecker, Rothko’s assistant, found him in his kitchen, lying on the floor in front of the sink, covered in blood. HIS arms had been cut open with a razor. The emergency doctor arrived on the scene minutes later to pronounce him dead as the result of suicide; it was discovered during the autopsy that he had also overdosed on anti-depressants. He was just 66 years old.

Mark Rothko emigrated to the United States ______.

A．with his father and elder sister

B．with his mother and brothers

C．with his mother and elder sister

D．with all his family

防水砂浆包括普通防水砂浆、外加剂防水砂浆、聚合物防水砂浆和石灰防水砂浆等。

鸡传染性法氏囊病的特征是腹泻，（），极度衰落，法氏囊炎，胸肌、腿肌、腺胃和肌胃交界处出血。

A、贫血

B、血便

C、颤抖

D、扭颈