已知X气体是一种无色有刺激性气味的酸性氧化物,有关X、Y、Z、W的转化关系如图所

题型:填空题

问题:

已知X气体是一种无色有刺激性气味的酸性氧化物,有关X、Y、Z、W的转化关系如图所示,反应①~④均为化合反应.回答下列问题:

(1)Y的化学式为______,Z的化学式为______.X直接排入空气中易造成的环境问题是______.

(2)反应①~⑤中属于可逆反应的是______,属于氧化还原反应的是______.

(3)写出反应⑤的化学方程式:______.

考点:无机推断
题型:填空题

How did you______ the weekend?

A.spend

B.take

C.do

D.spent

题型:填空题

阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的

词或使用括号中词语的正确形式填空,并将答案填写在答题卡标号为16-25的相应位置上。

In most cities,  小题1:  or poor, it is the less well off that are most at risk from floods and natural disasters. It was the poor of New Orleans, nearly a  小题2: (three)of the population, who lived in the lowest-lying parts of the city and 小题3: (suffer)most from Katrina’s(卡特里娜飓风) wrath (愤怒). 小题4:  (similar), it was the urban poor of Honduras(洪都拉斯) and its neighbors who were struck hardest  小题5: Hurricane Mitch in 1998. And it is the people of the slums (贫民窟) more widely in Latin America  小题6:are most capable of being attacked.

In some places, too little water, not too much, is the problem. China’s thirst for industry and 小题7:  (irrigate) has combined with climate change to drain the aquifers(蓄水层). Droughts seem to be ever more frequent in northem China, and southern cities such as Guangzhou are also affected. Rivers are drying up: the Yellow River now flows to the sea for only  小题8: few weeks a year. And the rain,when it comes, is intensely acid. To make matters 小题9: (bad), the glaciers on which both China 小题10:India partly depend are melting. Any benefits from extra water supplies will be short-term, and damaged by floods.

题型:填空题

环境影响的程度和显著性的相关因素包括()。

A.拟建项目的"活动"特征

B.相关环境要素的承载能力

C.拟建项目的"活动"强度

D.各项环境要素指标本底值

题型:填空题

鼻疖患者出现局部弥漫性肿胀,波及上唇、颊、眼睑、颧部,有剧烈跳痛,全身不适,伴发热,无眼球活动及视力障碍,最可能的并发症是()。

A.海绵窦血栓性静脉炎

B.面部蜂窝织炎

C.化脓性上颌骨骨髓炎

D.眶壁骨膜下脓肿

E.球后视神经炎

题型:填空题

男性,18岁,抑郁症患者。近2周病情复发。3天前父母发现他有自杀企图而送其住院。对这一患者医生首先要做的是()

A.使患者认识到自杀是一种逃避生活的行为

B.鼓励患者要坚强,要战胜自我

C.详细了解病史,分析自杀企图的原因

D.尽快使用抗抑郁药治疗控制病情

E.使用抗焦虑药治疗

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