- 能量的守恒与耗散
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【选修3-3选做题】
下列说法中正确的是
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下列关于热现象的说法,正确的是
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密闭有空气的薄圆塑料瓶因降温而变扁,此过程中瓶内空气(不计分子势能)
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正确答案
一定质量的理想气体在某一过程中,外界对气体做功7.0×104j,其体内能减小1.3×105j,则此过程
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正确答案
下列说法正确的是
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氧气钢瓶充气后压强高于外界大气压,假设缓慢漏气时瓶内外温度始终相等且保持不变,忽略氧气分子之间的相互作用。在该漏气过程中瓶内氧气
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正确答案
一定质量的理想气体,从某一状态开始,经过系列变化后又回一开始的状态,用w1表示外界对气体做的功,w2表示气体对外界做的功,q1表示气体吸收的热量,q2表示气体放出的热量,则在整个过程中一定有
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正确答案
下列说法正确的是
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下列说法正确的是
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下列说法正确的是
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关于热力学定律,下列说法正确的是
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正确答案
下列说法中正确的为( )
正确答案
Every spring migrating salmon return to British Columbia’s rivers to spawn. And every spring new reports detail fresh disasters that befall them. This year is no different. The fisheries committee of Canada’s House of Commons and a former chief justice of British Columbia, Bryan Williams, have just examined separately why 1.3 million sockeye salmon mysteriously "disappeared" from the famed Fraser river fishery in 2004.Their conclusions point to a politically explosive conflict between the survival of salmon and the rights of First Nations, as Canadians call Indians.
In 2004, only about 524, 000 salmon are thought to have returned to the spawning grounds, barely more than a quarter the number who made it four years earlier. High water temperatures may have killed many. The House of Commons also lambasted the federal Department of Fisheries and Oceans (DFO) for poor scientific data, and for failing to enforce catch levels. Four similar reports since 1992 have called for the department’s reform. In vain: its senior officials are "in denial" about its ’failings, said the committee.
Mr. Williams’ report added a more shocking twist. He concluded that illegal fishing on the Fraser river is "rampant and out of control", with "no go" zones where fisheries officers are told not to confront Indian poachers for fear of violence. The judge complained that the DFO withheld a report by one of its investigators which detailed extensive poaching and sale of salmon by members of the Cheam First Nation, some of whom were armed.
Some First Nations claim an unrestricted right to fish and sell their catch. Canada’s constitution acknowledges the aboriginal right to fish for food and for social and ceremonial needs, but not a general commercial right. On the Fraser, however, the DFO has granted Indians a special commercial fishery. To some Indians, even that is not enough.
Both reports called for more funds for the DFO, to improve data collection and enforcement. They also recommended returning to a single legal regime for commercial fishing applying to all Canadians.
On April 14th, Geoff Regan, the federal fisheries minister, responded to two previous reports from a year ago. One, from a First Nations group, suggested giving natives a rising share of the catch. The other proposed a new quota system for fishing licences, and the conclusion of long-standing talks on treaties, including fishing rights, with First Nations. Mr. Regan said his department would spend this year consulting "stakeholders" (natives, commercial and sport fishermen). It will also launch pilot projects aimed at improving conservation, enforcement and First Nations’ access to fisheries.What does "First Nations" refer to()
A.Canadian Indians.
B.American Indians.
C.Natives of the Fraser.
D.People who inhabiting the Fraser.
正确答案
A
解析
语义题。文章第一段最后一句中提到“…第一民族即加拿大人称之为印第安人的权利”,由此可以判断出First Nations指的就是印第安人,所以[A]“加拿大的印第安人”正确。[B]“美国的印第安人”,[C]“Fraser的本地人”和[D]“居住在Fraser的人”都与文意不符。
根据《中华人民共和国民事诉讼法》的规定,下列关于督促程序的表述中,正确的是( )。
A.督促程序是一种非讼的特别程序
B.督促程序适用于债权人请求债务人交付房产的案件
C.支付令的送达可以采用公告送达的方式
D.支付令异议的提出,可以采用口头形式
正确答案
A
解析
本题考查对督促程序的理解。督促程序是一种非讼的特别程序,适用于债权人请求债务人支付金钱、有价证券的案件。支付令的送达应采用直接送达、留置送达等法定送达方式。支付令异议的提出,可以采用书面形式。所以只有A选项正确。
下列疾病中与Ⅲ型超敏反应无关的是
A.Arthus反应
B.类Arthus反应
C.血清病
D.Grave病
E.链球菌感染后肾小球肾炎
正确答案
D
解析
[解析] Ⅲ型超敏反应的发生是由于循环中抗原与相应抗体结合,形成中等大小免疫复合物,沉积于毛细血管基底膜上引起。常见的局部免疫复合物病如Arthus反应、类 Arthus反应;全身免疫复合物病如血清病、链球菌感染后肾小球肾炎、SLE、RA。
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