钽、锆、铌及其合金用于压力容器受压元件时,钽和钽合金设计温度不高于()℃。A、350

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问题:

钽、锆、铌及其合金用于压力容器受压元件时,钽和钽合金设计温度不高于()℃。

A、350

B、300

C、250

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某市人民代表大会经多年探索,创立了人大代表接待站和专职的人民代表联络员制度,每天至少有一位人大代表到现场听取民众反映情况。这一制度创新有利于(  )

①激发广大公民关心国家大事的责任心和主人翁意识 

②拓宽公民政治表达渠道 

③强化对国家机关及其工作人员的监督            

④推动基层自治制度的健全和完善

A.①②③

B.②③④

C.①②④

D.①③④

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Americans’ (1) impulses keep generating surprises. Charitable giving plays an even larger role in the (2) . Demand for nonprofit services gets proportionately bigger as a locality’s (3) rises. The philanthropy of the wealthy may not hinge on tax (4) to the degree many believe. The US (5) the world in levels of charitable activity. Some experts see charity as a (6) trait of the US, more than (7) or business. But those forces may be (8) , as many nonprofits, from healthcare to classical music are selling (9) in a marketplace alongside for-profit (10) . Charity is no mere (11) activity. It pays off for society in ways that may (12) the rates of return on many traditional investments. Charity not only helps those on the (13) end but also strengthens the (14) of society at large. Moreover, it appears to make the givers themselves more (15) . The pattern that conservatives are better givers than (16) is less about politics than about charity-linked (17) most common to conservatives, religious commitment, marriage and children, and entrepreneurship. The main point is that more Americans, regardless of ideology, embrace giving as a tool for (18) . The urge to make a difference, and to take (19) in it, outweighs (20) considerations.

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1997年7月1日,中国政府在香港驻军是依据

A.《香港特别行政区基本法》

B.《中华人民共和国宪法》

C.《义务兵役法》

D.《香港特别行政区驻军法》

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蜣螂(qianglang)俗称“屎壳郎”,它总是边走边滚动一个圆球。这圆球是()。

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治疗艾滋病并发症的首选药物是()

A.Kaposi肉瘤用干扰素

B.卡氏肺孢子虫肺炎用喷他脒

C.隐孢子虫病用甲硝唑

D.隐球菌病用复方新诺明

E.弓形虫病用两性霉素B

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