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【单选题】
炎症哮喘患者可以出现( )
A.
脉搏增快
B.
脉搏减弱
C.
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参考答案:
举一反三
【单选题】下列有关物质性质的应用错误的是
A.
Al 2 O 3 的熔点很高,可用于制造耐火材料
B.
H 2 O 2 有氧化性,可用于杀菌消毒
C.
常温下,铝遇浓硫酸会钝化,可用铝槽车运输浓硫酸
D.
Na 2 SO 4 浓溶液能使蛋白质溶液发生盐析,可用于杀菌消毒
【多选题】《高层民用建筑设计防火规范》规定,窗槛墙,窗间墙的填充材料应采用不燃烧材料.当外墙采用耐火极限不低于1.00h的不燃烧体时,其墙内填充材料可采用()
A.
不燃烧材料
B.
难燃烧材料
C.
可燃烧材料
D.
易燃烧材料
【多选题】耐火材料可应用于( )。
A.
炼钢
B.
装饰材料
C.
冶金工业
D.
熔炼有色金属
【单选题】窗槛墙、窗间墙的填充材料应采用不燃材料。当外墙面采用耐火极限不低于( )h的不燃烧体时,其墙内填充材料可采用难燃材料。
A.
0.5
B.
1
C.
1.5
D.
2
【单选题】下列叙述正确的是 ①氧化铝是一种比较好的耐火材料,可用来制造耐火坩埚 ②氧化铁常用作红色油漆和涂料 ③碳酸氢钠俗名小苏打,可用于制作发酵粉和治疗胃酸过多的药物 ④过氧化钠比氧化钠稳定,但两种氧化物均可作潜艇中的供氧剂 ⑤焰色反应体现的是元素的性质
A.
①②③⑤
B.
②③④⑤
C.
①③④⑤
D.
①②③④
【单选题】In the last paragraph, the phrase 'took to' could be best replaced by which of the following?
A.
Began.
B.
Fled to
C.
Carried to.
D.
Became friendly toward.
【单选题】International trade is different from domestic trade,please point out which of the following descriptions is not right?( )
A.
International trade is more costly
B.
International trade is less costly
C.
International trade is restricted to trade in goods and services
D.
International trade is also a branch of economics
【单选题】下列有关物质的性质与应用不对应的是
A.
氨气具有还原性,可用作制冷剂
B.
MgO、Al 2 O 3 熔点高,可用于制作耐火材料
C.
Na 2 CO 3 溶液显碱性,可用其热溶液除去金属餐具表面油污
D.
常温下浓硫酸能使铝发生钝化,可在常温下用铝制容器贮运浓硫酸
【单选题】According to the passage, skepticism becomes problematic when it does which of the following?
A.
It becomes overly demanding by criticizing the possible justifications for a prediction about the future.
B.
It requires too much by suggesting that thinkers not rely on an infinite regress of justification.
C.
It suggests, despite certain epistemological arguments that we abandon the dream of conclusive justification.
D.
It argues that the truth is to be had through a lucky guess, rather than through reason and deduction.
E.
It suggests that we adopt a universal suspension of belief, rather than being selective in our incredulity.
【单选题】The author's description of philosophers of logical analysis mentions which of the following?
A.
They believe there is a higher way of knowing.
B.
They believe truths can be discovered from science.
C.
They believe that human intellect is important.
D.
They believe that people can discover truth from intellect.
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