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【单选题】
下列几种酚,pKa最大的是
A.
苯酚
B.
2,4,6-三硝基苯酚
C.
对硝基苯酚
D.
对甲基苯酚
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参考答案：
举一反三
【单选题】This weekend's Independence Day festivities in Washington, DC, when the National Mall is jammed for the traditional concert and fireworks extravaganza, is a boom time for flag dealers, refreshment sta...
A.
High-ranking officials in US corporations.
B.
Top-level US government officials like a defense secretary.
C.
US Presidents.
D.
Principals in US universities.
查看完整题目与答案
【简答题】America has had many Presidents who have been famous all over the world. People from other countries know the names Washington, Kennedy(肯尼迪) and so on. However, many men who have served as President o...
查看完整题目与答案
【单选题】Jackie lives in a _____.
A.
a house in Mexico city
B.
a small house with four bedrooms
C.
a house with three different rooms an a kitchen
D.
a place with six rooms
查看完整题目与答案
【简答题】逻辑努力（logical effort）表示一个门与一个反相器提供相同的输出电流时它所表现出的 比反相器大多少。
查看完整题目与答案
【单选题】Jackie lives in a small _______ .
A.
dorm
B.
house
C.
apartment
查看完整题目与答案
【简答题】Back in 1969,it was the Apollo 11 crew who flew to the moon in a spaceship.When U.S.astronauts Neil Armstrong and Edwin “Buzz”Aldrin stepped foot on the moon,they were the first.Meanwhile,their ...
查看完整题目与答案
【判断题】Jackie lives in a big house.
A.
正确
B.
错误
查看完整题目与答案
【单选题】When Mad Cow disease was discovered on a Washington ranch, Japan issued a temporary ban on beef exported from the U.S. This incident illustrates how a __________ environment can affect domestic indust...
A.
global
B.
economic
C.
industry
D.
social
查看完整题目与答案
【单选题】宇宙中氦的含量约为多少?()
A.
.25
B.
.5
C.
.75
D.
1
查看完整题目与答案
【单选题】国内的培训机构联合发起自律公约，说明行业已深刻认识到当前教育培训市场面临的严重问题。虽然校外培训机构在不断发展，但扩张过快必然存在办学不规范、行业指导和行业规范相对滞后等现象。各种乱象大行其道，相关政策以及监管的缺位，也让培训机构有机可乘。因此倡导行业自律，加强行业规范尤为重要。另一方面，由于缺少详细的法律、法规明确对教育培训机构的执法权，目前教育培训机构仍呈现较为明显的“表面上头多管理，实际上无...
A.
当前国内教育培训行业存在很多问题
B.
国内培训机构联合发起自律公约的诸多问题
C.
自律公约的发布可以有效解决当前教育培训行业出现的问题
D.
缺乏法律监管是培训行业成为人人可以进入的“公地”的重要原因
查看完整题目与答案
相关题目：
【单选题】This weekend's Independence Day festivities in Washington, DC, when the National Mall is jammed for the traditional concert and fireworks extravaganza, is a boom time for flag dealers, refreshment sta...
A.
High-ranking officials in US corporations.
B.
Top-level US government officials like a defense secretary.
C.
US Presidents.
D.
Principals in US universities.
查看完整题目与答案
【简答题】America has had many Presidents who have been famous all over the world. People from other countries know the names Washington, Kennedy(肯尼迪) and so on. However, many men who have served as President o...
查看完整题目与答案
【单选题】Jackie lives in a _____.
A.
a house in Mexico city
B.
a small house with four bedrooms
C.
a house with three different rooms an a kitchen
D.
a place with six rooms
查看完整题目与答案
【简答题】逻辑努力（logical effort）表示一个门与一个反相器提供相同的输出电流时它所表现出的 比反相器大多少。
查看完整题目与答案
【单选题】Jackie lives in a small _______ .
A.
dorm
B.
house
C.
apartment
查看完整题目与答案
【简答题】Back in 1969,it was the Apollo 11 crew who flew to the moon in a spaceship.When U.S.astronauts Neil Armstrong and Edwin “Buzz”Aldrin stepped foot on the moon,they were the first.Meanwhile,their ...
查看完整题目与答案
【判断题】Jackie lives in a big house.
A.
正确
B.
错误
查看完整题目与答案
【单选题】When Mad Cow disease was discovered on a Washington ranch, Japan issued a temporary ban on beef exported from the U.S. This incident illustrates how a __________ environment can affect domestic indust...
A.
global
B.
economic
C.
industry
D.
social
查看完整题目与答案
【单选题】宇宙中氦的含量约为多少?()
A.
.25
B.
.5
C.
.75
D.
1
查看完整题目与答案
【单选题】国内的培训机构联合发起自律公约，说明行业已深刻认识到当前教育培训市场面临的严重问题。虽然校外培训机构在不断发展，但扩张过快必然存在办学不规范、行业指导和行业规范相对滞后等现象。各种乱象大行其道，相关政策以及监管的缺位，也让培训机构有机可乘。因此倡导行业自律，加强行业规范尤为重要。另一方面，由于缺少详细的法律、法规明确对教育培训机构的执法权，目前教育培训机构仍呈现较为明显的“表面上头多管理，实际上无...
A.
当前国内教育培训行业存在很多问题
B.
国内培训机构联合发起自律公约的诸多问题
C.
自律公约的发布可以有效解决当前教育培训行业出现的问题
D.
缺乏法律监管是培训行业成为人人可以进入的“公地”的重要原因
查看完整题目与答案
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