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【单选题】
某有机物A是农药生产中的一种中间体，其结构下，下列叙述正确的是（　　）
A.
有机物A属于芳香烃
B.
有机物A和浓硫酸混合加热，可以发生消去反应
C.
有机物A的核磁共振氢谱有7个峰
D.
1mol A和足量的NaOH溶液反应，最多可以消耗3mol NaOH
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参考答案：
举一反三
【单选题】What does Professor John Sinclair say about one of the findings coming out of the studies? 查看材料
A.
'Ex' and 'former' are often associated with 'lover'.
B.
'Her lover' is more often used than 'his lover'.
C.
English language is used wittily and lively.
D.
Ordinary people use English language more frequently.Questions 18 -21 are based on the following dialogue.
查看完整题目与答案
【简答题】根据以下材料回答第 1～4 题： Passage Four John Paul Jones was one of the founders of the United States Navy．During the Rev0lution，the colonies were desperate．They needed men to lead their small ships against the ...
查看完整题目与答案
【简答题】读南水北调工程示意图，回答4一6题。 小题1:京津冀所在的华北地区，水资源短缺的原因与下列哪些因素有关 ①土地和耕地面积大          ②人口少 ③水资源利用率高             ④水资源总量少 A．①② B．③④ C．①③ D．①④ 小题2:长江以北地区水资源分布与耕地资源分布不匹配，面对这种情况正确的做法是 ①减少耕地面积                 ②减少耕地的灌溉面积 ③...
查看完整题目与答案
【多选题】关东地区的城市有以下哪些_______
A.
东京
B.
大阪
C.
镰仓
D.
横滨
查看完整题目与答案
【判断题】芸香苷(芦丁)的Molish反应在两液面交界处出现紫色环。
A.
正确
B.
错误
查看完整题目与答案
【简答题】下列哪些能称得上是山东琴书发展进程中的关键性大事?( ) A 、城市中的一些风雅之士在宅内修建琴台楼阁,弹奏古琴和筝自唱自娱,由于琴台临水,使乐音清雅动听,故被称为“琴筝清曲”。 B 、农村也有唱小曲子的风气,用扬琴、四胡、琵琶等乐器伴奏,被称为“庄家耍”。 C 、随着从业的人数越来越多,艺人们的竞争越来越激烈,山东琴书的艺术性得到了很大发展,逐渐形成了以地域为特征的各路流派。比较有影响的主要有鲁...
查看完整题目与答案
【单选题】Why does the author quote the example of naturalist John Muir?
A.
Because he was one of the most famous persons in the history of national parks.
B.
Because he had done many strange and ecstatic behaviors in the name of national parks.
C.
Because his holy behaviors reflected the breathtaking charisma of the national parks.
D.
Because he was more immersed in the natural beauty rather than industrial profit.
查看完整题目与答案
【单选题】Passage Four John Paul Jones was one of the founders of the United States Navy. During the Revolution, the colonies were desperate. They needed men to lead their small ships against the British fleet....
A.
French
B.
British
C.
Turks
D.
Spanish
查看完整题目与答案
【单选题】高速重载、供油量大的重要部件应采用
A.
手工加油润滑
B.
油浴和飞溅润滑
C.
油环润滑
D.
循环压力供油润滑
查看完整题目与答案
【单选题】对企业网络最大的威胁是()
A.
外国政府
B.
竞争对手
C.
内部员工的恶意攻击
D.
黑客攻击
查看完整题目与答案
相关题目：
【单选题】What does Professor John Sinclair say about one of the findings coming out of the studies? 查看材料
A.
'Ex' and 'former' are often associated with 'lover'.
B.
'Her lover' is more often used than 'his lover'.
C.
English language is used wittily and lively.
D.
Ordinary people use English language more frequently.Questions 18 -21 are based on the following dialogue.
查看完整题目与答案
【简答题】根据以下材料回答第 1～4 题： Passage Four John Paul Jones was one of the founders of the United States Navy．During the Rev0lution，the colonies were desperate．They needed men to lead their small ships against the ...
查看完整题目与答案
【简答题】读南水北调工程示意图，回答4一6题。 小题1:京津冀所在的华北地区，水资源短缺的原因与下列哪些因素有关 ①土地和耕地面积大          ②人口少 ③水资源利用率高             ④水资源总量少 A．①② B．③④ C．①③ D．①④ 小题2:长江以北地区水资源分布与耕地资源分布不匹配，面对这种情况正确的做法是 ①减少耕地面积                 ②减少耕地的灌溉面积 ③...
查看完整题目与答案
【多选题】关东地区的城市有以下哪些_______
A.
东京
B.
大阪
C.
镰仓
D.
横滨
查看完整题目与答案
【判断题】芸香苷(芦丁)的Molish反应在两液面交界处出现紫色环。
A.
正确
B.
错误
查看完整题目与答案
【简答题】下列哪些能称得上是山东琴书发展进程中的关键性大事?( ) A 、城市中的一些风雅之士在宅内修建琴台楼阁,弹奏古琴和筝自唱自娱,由于琴台临水,使乐音清雅动听,故被称为“琴筝清曲”。 B 、农村也有唱小曲子的风气,用扬琴、四胡、琵琶等乐器伴奏,被称为“庄家耍”。 C 、随着从业的人数越来越多,艺人们的竞争越来越激烈,山东琴书的艺术性得到了很大发展,逐渐形成了以地域为特征的各路流派。比较有影响的主要有鲁...
查看完整题目与答案
【单选题】Why does the author quote the example of naturalist John Muir?
A.
Because he was one of the most famous persons in the history of national parks.
B.
Because he had done many strange and ecstatic behaviors in the name of national parks.
C.
Because his holy behaviors reflected the breathtaking charisma of the national parks.
D.
Because he was more immersed in the natural beauty rather than industrial profit.
查看完整题目与答案
【单选题】Passage Four John Paul Jones was one of the founders of the United States Navy. During the Revolution, the colonies were desperate. They needed men to lead their small ships against the British fleet....
A.
French
B.
British
C.
Turks
D.
Spanish
查看完整题目与答案
【单选题】高速重载、供油量大的重要部件应采用
A.
手工加油润滑
B.
油浴和飞溅润滑
C.
油环润滑
D.
循环压力供油润滑
查看完整题目与答案
【单选题】对企业网络最大的威胁是()
A.
外国政府
B.
竞争对手
C.
内部员工的恶意攻击
D.
黑客攻击
查看完整题目与答案
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