一堆煤,工厂原计划烧60天,每天烧15吨,实际每天比原计划节约20%,这批煤实际

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一堆煤,工厂原计划烧60天,每天烧15吨,实际每天比原计划节约20%,这批煤实际烧了多少天?

考点:百分数的计算,百分数的应用题
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薯片生产用的香蕉味的食用香精

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动脉血是指(  )

A.含养料多,颜色鲜红的血

B.动脉中流动的血液

C.含氧丰富,颜色鲜红的血

D.含氧多,含养料多,颜色鲜红的血

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为了证明铜与稀硝酸反应产生一氧化氮,某校学生实验小组设计了一个实验,其装置如下图所示(加热装置和固定装置均已略去),B为一个用金属丝固定的干燥管,内装块状碳酸钙固体;E为一个空的蒸馏烧瓶;F是用于鼓入空气的双连打气球。

(1)实验时,为在E烧瓶中收集到NO,以便观察颜色,必须事先赶出去其中的空气。其中第一步实验操作为_______________。如何确定E中空气已被赶尽____________。

(2)将A中铜丝放入稀硝酸中,给装置A微微加热,在装置A中产生无色气体,其反应的离子方程式为_________________。

(3)如何证明E中收集到的是NO而不是H2?________________ 。一段时间后,C中白色沉淀溶解,其原因是_______________。

(4)装置D的作用是_____________________。

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Tuning in round the clock, via satellite or internet blog, to any bout of mayhem anywhere, you might not think the world was becoming a more peaceable place. But in some ways it is, and measurably so. A recent Human Security Report released by the Liu Institute at the University of British Columbia registers a 40% drop in the number of armed conflicts between 1992 and 2003, with the worst wars, those claiming more than a thousand lives in battle, down by 80%. While 28 armed struggles for self-determination ignited or reignited between 1991 and 2004, an encouraging 43 others were contained or doused.

Yet measured in a different way, from the point of view of the half of the world’s population that is female, argues the Geneva Centre for the Democratic Control of the Armed Forces, the world is an awfully violent place, and not just in its war zones. Men still fill most of the body bags in wartime, including in civil wars, even on DCAF’s figures, but their sisters, mothers, wives and daughters, it argues in a new report entitled "Women in an Insecure World", face nothing short of a "hidden gendercide".

Violence against women is nothing new. DCAF’s contribution is to collate the many figures and estimates—not all of them easily verifiable, it has to be said—on everything from infanticide to rape (in both war and peace), dowry deaths, sex trafficking and domestic violence (in richer countries as well as poorer ones).

According to one UN estimate cited by DCAF, between 113m and 200m women are now demographically "missing". This gender gap is a result of the aborting of girl foetuses and infanticide in countries where boys are preferred; lack of food and medical attention that goes instead to brothers, fathers, husbands and sons; so-called "honour killings" and dowry deaths; and other sorts of domestic violence. It implies that each year between 1.5m and 3m women and girls are lost to gender-based violence. In other words, every two to four years the world looks away from a victim count on the scale of Hitler’s Holocaust. Women between the ages of 15 and 44 are more likely to be maimed or die from violence inflicted one way or another by their menfolk than through cancer, malaria, traffic accidents or war combined. Poor health care means that 600,000 women are lost each year to childbirth (a toll roughly equal annually to that of the Rwandan genocide). The World Health Organisation estimates that 6,000 girls a day (more than 2m a year), mostly in the poor world, undergo genital mutilation. Other WHO figures suggest that, around the world, one woman in five is likely to be a victim of rape or attempted rape in her lifetime.

It can be inferred from the third paragraph of the text that()

A. violence against women has been ignored since the 1960s

B. many figures and estimates can not stand scrutiny concerned

C. DCAF has long contributed to the infanticide and rape in richer nations

D. the examining work conducted by DCAF has been demanding

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间歇性精神病人朱某,在其精神正常时对他人进行殴打,警官王某认为朱某系精神病人不予处罚。( )

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