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【简答题】
煤炭的元素分析按重量百分比表示,结果如下:氢5.0%;碳75.8%;氮1.5%;硫1.6%;氧7.4%;灰8.7%,燃烧条件为空气过量20%,空气的湿度为0.0116molH2O/mol干空气,并假定完全燃烧,试计算烟气的组成。
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举一反三
【单选题】才能的高度发展即为( )
A.
天才
B.
特殊能力
C.
才能
D.
一般能力
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【简答题】设f 1 、f 2 都是从代数系统(A，★)到(B，*)的同态．设g是从A到B的一个映射，使得对任意a∈A都有g(a)=f 1 (a)*f 2 (a)．证明：如果(B，*)是一个可交换半群，那么g是由(A，★)到(B，*)的同态．
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【单选题】Republican efforts to impeach or __________ the IRS commissioner are exercises in partisanship and a waste of time and money, the Democrat asserted.
A.
censure
B.
censer
C.
censor
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【单选题】Mitch MeConnell was ______.
A.
Secretary of State
B.
Republican senator
C.
Democratic senator
D.
the spokesman of the Bush administration
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【判断题】交叉施工不允许上下在同一垂直方向上的作业( )
A.
正确
B.
错误
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【单选题】听力原文： A grass-roots group troubled by recent Republican triumphs and the influence of the Christian right is fighting back in Northern Virginia by defending the teaching of Darwinian evolution, a batt...
A.
The theory of evolution.
B.
The new classroom approaches.
C.
The Christian right.
D.
The government.
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【简答题】Efforts to accelerate the current energy transitions didn‘t succeed as expected． 查看材料
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【单选题】Despite efforts to eradicate it, corruption persists, though it doesn't ______
A.
speed
B.
hasten
C.
accelerate
D.
boost
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【单选题】We don't think that this result consists ______ our efforts exerted.
A.
of
B.
in
C.
to
D.
with
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【简答题】设f和g都是群(G 1 ，★)到群(G 2 ，*)的同态映射，证明：(C，★)是(G 1 ，★)的一个子群，其中，C={x|x∈G 1 ，且f(x)=g(x)}．
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相关题目：
【单选题】才能的高度发展即为( )
A.
天才
B.
特殊能力
C.
才能
D.
一般能力
查看完整题目与答案
【简答题】设f 1 、f 2 都是从代数系统(A，★)到(B，*)的同态．设g是从A到B的一个映射，使得对任意a∈A都有g(a)=f 1 (a)*f 2 (a)．证明：如果(B，*)是一个可交换半群，那么g是由(A，★)到(B，*)的同态．
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【单选题】Republican efforts to impeach or __________ the IRS commissioner are exercises in partisanship and a waste of time and money, the Democrat asserted.
A.
censure
B.
censer
C.
censor
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【单选题】Mitch MeConnell was ______.
A.
Secretary of State
B.
Republican senator
C.
Democratic senator
D.
the spokesman of the Bush administration
查看完整题目与答案
【判断题】交叉施工不允许上下在同一垂直方向上的作业( )
A.
正确
B.
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查看完整题目与答案
【单选题】听力原文： A grass-roots group troubled by recent Republican triumphs and the influence of the Christian right is fighting back in Northern Virginia by defending the teaching of Darwinian evolution, a batt...
A.
The theory of evolution.
B.
The new classroom approaches.
C.
The Christian right.
D.
The government.
查看完整题目与答案
【简答题】Efforts to accelerate the current energy transitions didn‘t succeed as expected． 查看材料
查看完整题目与答案
【单选题】Despite efforts to eradicate it, corruption persists, though it doesn't ______
A.
speed
B.
hasten
C.
accelerate
D.
boost
查看完整题目与答案
【单选题】We don't think that this result consists ______ our efforts exerted.
A.
of
B.
in
C.
to
D.
with
查看完整题目与答案
【简答题】设f和g都是群(G 1 ，★)到群(G 2 ，*)的同态映射，证明：(C，★)是(G 1 ，★)的一个子群，其中，C={x|x∈G 1 ，且f(x)=g(x)}．
查看完整题目与答案