下列几个家用电器中,以利用电流热效应工作为主的是( ) A.电冰箱 B.电视机

题型:选择题

问题:

下列几个家用电器中,以利用电流热效应工作为主的是(   )

A.电冰箱

B.电视机

C.洗衣机

D.电饭煲

考点:电流的热效应、化学效应
题型:选择题

甲、乙、丙、丁四人进行射击测试,每人射击8次,射击成绩的平均环数相同,方差分别为:S2=6.5、S2=5.3、S2=5.8、S2=8.1,则成绩最稳定的是______.

题型:选择题

Vancouver(温哥华)

Natural Resources

As a major centre for the global forestry industry, Vancouver is host to many international forestry conferences and events, and the natural home of the massive BC forestry business. Companies such as Canfor and West Fraser Timber Co., the second and third largest lumber(木材)producers in the world, are headquartered in Vancouver. Vancouver is also a major centre for the mining industry. 

International trade

International trade is a key part for Vancouver's economy. The city has Canada's largest port and is one of North America's major gateways for Pan-Pacific(泛太平洋)trade. The Port of Vancouver ranks first in North America in total foreign exports and second on the West Coast in total goods volume.

Banking and Financial

The headquarters for HSBC Canada (汇丰银行)is located in the Financial District in downtown. Canada's third largest commercial entity(实体), Jim Pattison Group is also based in Vancouver.

International relation

Vancouver is a major centre for diplomacy(外交) and foreign relations. Most countries of the world have consulate(领事馆)or general offices in the Central Business District. In fact, many major diplomatic conferences are hosted by the city - including the world famous G7 summit with President Clinton, APEC, and the World Trade Organization. Greenpeace has its world headquarters in the city. Therefore, Vancouver was among the first North American cities to declare itself a Nuclear Weapons Free Zone.

Tourism

Tourism is a leading industry to Vancouver. The Whistler-Blackcomb Resort is among the most popular skiing resorts in North America, and will be the site of the downhill events of the 2010 Winter Olympics. Vancouver's beaches, parks, waterfronts, and mountain backdrops and its multi- cultural character attract more and more tourists.

Film

Vancouver was the source of the sobriquet(绰号)"Hollywood North", for hosting the production of about ten percent of Hollywood's movies. Many U.S. television and films series are shot exclusively in Vancouver. This has partly been because of the favourable Canadian dollar exchange rate.

小题1:Which of the following description about Vancouver is NOT true according to the passage?

A.The Port of Vancouver ranks first in North America in total foreign exports

B.Vancouver is a film production centre and called “Hollywood North".

C.International forestry conferences and events were held in Vancouver.

D.Vancouver is a leading centre for the global agriculture and industry.小题2: Which of the following organizations or events is not related to Vancouver?

A.Jim Pattison Group

B.WHO

C.Greenpeace

D.The 2010 Winter Olympics小题3:If you are a graduate from Shanghai Finance and Economics University, what is it that will probably attract you to visit Vancouver?

A.Its international trade.

B.Its film industry

C.HSBC Canada

D.Its beautiful natural scenery小题4:We can infer______ from the part: International relation.

A.Vancouver is a major centre for foreign relations.

B.Vancouver has hosted many major diplomatic conferences.

C.APEC and WTO are headquartered in Vancouver

D.Canada is a peace-loving country.小题5:The passage is probably taken from________.

A.a magazine

B.a geography book

C.a newspaper

D.an entertainment book

题型:选择题

运行途中全列母车发电机出力不均,如何调节?

题型:选择题

下列哪一项不是壁厚型胆囊癌的CT特征表现:

A.胆囊壁均匀增厚超过3mm

B.胆囊壁局限性不对称增厚

C.胆囊壁弥漫性不规则增厚

D.增强扫描显示胆囊不规则增强

E.肝门周围常有淋巴结转移

题型:选择题

患儿,1岁,因食欲差,母乳少,以米糊、稀饭喂养,未添加其他辅食,诊断为营养不良Ⅰ度。最先出现的症状为

A.体重不增
B.皮肤干燥
C.肌张力低下
D.身长低于正常
E.皮下脂肪减少

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