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【单选题】
可用来鉴别甲酸和乙酸的物质是
A.
碳酸钠
B.
试剂
C.
Na
D.
酚酞
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参考答案：
举一反三
【单选题】Domestic noises may perhaps be controlled by______.
A.
good planning and technical improvement
B.
preventing fast motorcycles and heavy lorries from passing through residential districts
C.
being considerate and polite
D.
signing international agreements on the noise control measures
查看完整题目与答案
【单选题】现存于英国伦敦大英图书馆和法国巴黎国立图书馆的( ),是现存世界上最早的原始状态的报纸。
A.
敦煌进奏院状
B.
开元杂报
C.
万历邸钞
D.
急选报
查看完整题目与答案
【单选题】The word “enhancement” in line 20 is closest in meaning to
A.
replacement
B.
design
C.
improvement
D.
decoration
查看完整题目与答案
【单选题】Computer Needs Emotion The next big breakthrough in artificial intelligence could come from giving machines not just more logical capacity, but emotional capacity as well. Feeling aren't usually assoc...
A.
it can make computers analyze the information more efficiently
B.
it can help to eliminate the computers' innate problems
C.
it can improve the mechanic capacity of computers
D.
it can make computers achieve a better understanding of human users
查看完整题目与答案
【单选题】—______ do your family usually have dinner? —At 7:00 p.m. [     ]
A.
What's the time
B.
What's time
C.
What time
D.
When time
查看完整题目与答案
【单选题】Which of the following should be included in your conclusion?
A.
A plodding repetition.
B.
Your doubt or hesitation.
C.
Connecting words.
D.
A brief and reworded summary of your main points.
查看完整题目与答案
【多选题】关于活字印刷的说法，正确的有（）。
A.
世界上最早的活字印刷术是我国宋代毕昇发明的
B.
宋代出现了用木活字排印的《邸报》
C.
元代王祯所作《造活字印书法》是我国最早系统叙述木活字印刷的珍贵文献
D.
清代出版《古今图书集成》是我国历史上规模最大的一次铜活字印刷
E.
活字印刷在我国古代出版业中最终取代雕版印刷成为主流印刷技术
查看完整题目与答案
【单选题】Which of the following is the best title for the passage?
A.
Family Doctor Is In.
B.
Improvement in Communications.
C.
How to Make Remote Diagnosis.
D.
Application of Telemedicine.
查看完整题目与答案
【多选题】关于活字印刷的说法，正确的有（）。
A.
世界上最早的活字印刷术是我国宋代毕舁发明的
B.
宋代出现了用木活字排印的《邸报》
C.
元代王祯所作《造活字印书法》是我国最早系统叙述木活字印刷的珍贵文献
D.
清代出版《古今图书集成》是我国历史上规模最大的一次铜活字印刷
E.
活字印刷在我国古代出版业中最终取代雕版印刷成为主流印刷技术
查看完整题目与答案
【单选题】Read the sections 4.1 to 4.3 of the paper.Which of the following statements from 4.1 presents the central finding of the article?
A.
The coefficient on English language proficiency has the expected sign and is highly statistically significant.
B.
According to the estimates above, the effect on trade of a 20 percent increase in the product of TOEFL scores is roughly equivalent in magnitude to the effect of sharing a native language.
C.
Our results thus demonstrate that improvements in English proficiency, while typically not very large, can nevertheless significantly raise trade.
D.
Our estimates also suggest that improvements in English proficiency have the potential to substantially improve economic welfare
查看完整题目与答案
相关题目：
【单选题】Domestic noises may perhaps be controlled by______.
A.
good planning and technical improvement
B.
preventing fast motorcycles and heavy lorries from passing through residential districts
C.
being considerate and polite
D.
signing international agreements on the noise control measures
查看完整题目与答案
【单选题】现存于英国伦敦大英图书馆和法国巴黎国立图书馆的( ),是现存世界上最早的原始状态的报纸。
A.
敦煌进奏院状
B.
开元杂报
C.
万历邸钞
D.
急选报
查看完整题目与答案
【单选题】The word “enhancement” in line 20 is closest in meaning to
A.
replacement
B.
design
C.
improvement
D.
decoration
查看完整题目与答案
【单选题】Computer Needs Emotion The next big breakthrough in artificial intelligence could come from giving machines not just more logical capacity, but emotional capacity as well. Feeling aren't usually assoc...
A.
it can make computers analyze the information more efficiently
B.
it can help to eliminate the computers' innate problems
C.
it can improve the mechanic capacity of computers
D.
it can make computers achieve a better understanding of human users
查看完整题目与答案
【单选题】—______ do your family usually have dinner? —At 7:00 p.m. [     ]
A.
What's the time
B.
What's time
C.
What time
D.
When time
查看完整题目与答案
【单选题】Which of the following should be included in your conclusion?
A.
A plodding repetition.
B.
Your doubt or hesitation.
C.
Connecting words.
D.
A brief and reworded summary of your main points.
查看完整题目与答案
【多选题】关于活字印刷的说法，正确的有（）。
A.
世界上最早的活字印刷术是我国宋代毕昇发明的
B.
宋代出现了用木活字排印的《邸报》
C.
元代王祯所作《造活字印书法》是我国最早系统叙述木活字印刷的珍贵文献
D.
清代出版《古今图书集成》是我国历史上规模最大的一次铜活字印刷
E.
活字印刷在我国古代出版业中最终取代雕版印刷成为主流印刷技术
查看完整题目与答案
【单选题】Which of the following is the best title for the passage?
A.
Family Doctor Is In.
B.
Improvement in Communications.
C.
How to Make Remote Diagnosis.
D.
Application of Telemedicine.
查看完整题目与答案
【多选题】关于活字印刷的说法，正确的有（）。
A.
世界上最早的活字印刷术是我国宋代毕舁发明的
B.
宋代出现了用木活字排印的《邸报》
C.
元代王祯所作《造活字印书法》是我国最早系统叙述木活字印刷的珍贵文献
D.
清代出版《古今图书集成》是我国历史上规模最大的一次铜活字印刷
E.
活字印刷在我国古代出版业中最终取代雕版印刷成为主流印刷技术
查看完整题目与答案
【单选题】Read the sections 4.1 to 4.3 of the paper.Which of the following statements from 4.1 presents the central finding of the article?
A.
The coefficient on English language proficiency has the expected sign and is highly statistically significant.
B.
According to the estimates above, the effect on trade of a 20 percent increase in the product of TOEFL scores is roughly equivalent in magnitude to the effect of sharing a native language.
C.
Our results thus demonstrate that improvements in English proficiency, while typically not very large, can nevertheless significantly raise trade.
D.
Our estimates also suggest that improvements in English proficiency have the potential to substantially improve economic welfare
查看完整题目与答案
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