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【简答题】
芳香酯类化合物A、B互为同分异构体，均含C、H、O三种元素。并且各有机物间存在如下转化关系 其中C能发生反应，F经连续氧化可生成C；C与D是相对分子质量相同的不同类有机物。 （1）C中所含官能团的名称是____________。 （2）A的分子式是____________。B的结构是____________。 （3）完全燃烧时，1 mol D与1 mol 下列_________的耗氧量相同（填字母代号）。 a．C 3 H 6 O 3 b．C 3 H 8 O c．C 2 H 4 d．C 2 H 6 O 2 （4）C与F反应的化学方程式是________________________，反应类型是__________。 （5）水杨酸 的同分异构体很多，写出其中含苯环且属于酯类的所有同分异构体的结构： ________________________。
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【单选题】What can be inferred from the passage?（ ）
A.
Some place names in Singapore are the same as in Britain．
B.
Some places in Singapore are named for military purposes．
C.
The way Singaporeans name their places is unique．
D.
Young Singaporeans have forgotten the pioneers．
查看完整题目与答案
【单选题】According to the passage, which of the following statements about female names is true?
A.
A dissyllabic pet name is much more likely to be female.
B.
Female names tend to end with a plosive.
C.
There is less predictability about popular female names than about male names.
D.
There is no one female name on the list of the most popular names.
查看完整题目与答案
【单选题】曲面 与平面 的交线在 平面上的投影曲线是( ).
A.
.
B.
C.
查看完整题目与答案
【单选题】Questions are based on the following passage. Names have gained increasing importance in the competitive world of higher education. As colleges strive for market share， they are looking for names that...
A.
is inadvisable
B.
is actually a marketing strategy
C.
reflects they don't pay much attention to their inner quality
D.
has positive influence on the development of higher education
查看完整题目与答案
【判断题】构建人类命运共同体是统筹国内国际两个大局,将中国梦与世界梦有机结合,实现中国与世界共赢的战略方针,也是新时代中国特色大国外交的目标。
A.
正确
B.
错误
查看完整题目与答案
【单选题】女,30岁,风湿性心瓣膜病二尖瓣狭窄4年,近1个月重体力劳动时出现呼吸困难入院。昨夜12点患者突然憋醒,端坐位,大汗淋漓,咳嗽,咳粉红色泡沫痰,心率120次/分,两肺满布湿啰音及哮鸣音,责任护士给予患者吸氧的正确方法是
A.
持续低流量吸氧
B.
高流量吸氧
C.
高流量酒精湿化吸氧
D.
低流量酒精湿化吸氧
E.
间断给氧
查看完整题目与答案
【单选题】According to the passage, unusual names come from______.
A.
popular culture
B.
parents' invention
C.
sports
D.
all of the above
查看完整题目与答案
【简答题】. 第二部分．阅读理解（共25小题。第一节每小题2分，第二节每小题1分；满分45分） “Linda, if beating yourself up were an Olympic sport, you’d win a gold medal!” Annabel, my close friend, stunned（使…震惊）me with that frank observation after I ...
查看完整题目与答案
【单选题】曲面 与平面 的交线是
A.
圆
B.
椭圆
C.
抛物线
D.
双曲线
查看完整题目与答案
【单选题】关于肠内营养制剂，下列哪项是不正确的
A.
以整蛋白为主的制剂适用于胃肠道功能正常者
B.
以蛋白水解产物为主的制剂适用于胃肠道消化吸收不良者
C.
有些肠内营养制剂含有谷氨酰胺和膳食纤维
D.
肠内营养制剂中可添加增强免疫的制剂
E.
肠内营养制剂中应添加胰岛素以防止出现高血糖
查看完整题目与答案
相关题目：
【单选题】What can be inferred from the passage?（ ）
A.
Some place names in Singapore are the same as in Britain．
B.
Some places in Singapore are named for military purposes．
C.
The way Singaporeans name their places is unique．
D.
Young Singaporeans have forgotten the pioneers．
查看完整题目与答案
【单选题】According to the passage, which of the following statements about female names is true?
A.
A dissyllabic pet name is much more likely to be female.
B.
Female names tend to end with a plosive.
C.
There is less predictability about popular female names than about male names.
D.
There is no one female name on the list of the most popular names.
查看完整题目与答案
【单选题】曲面 与平面 的交线在 平面上的投影曲线是( ).
A.
.
B.
C.
查看完整题目与答案
【单选题】Questions are based on the following passage. Names have gained increasing importance in the competitive world of higher education. As colleges strive for market share， they are looking for names that...
A.
is inadvisable
B.
is actually a marketing strategy
C.
reflects they don't pay much attention to their inner quality
D.
has positive influence on the development of higher education
查看完整题目与答案
【判断题】构建人类命运共同体是统筹国内国际两个大局,将中国梦与世界梦有机结合,实现中国与世界共赢的战略方针,也是新时代中国特色大国外交的目标。
A.
正确
B.
错误
查看完整题目与答案
【单选题】女,30岁,风湿性心瓣膜病二尖瓣狭窄4年,近1个月重体力劳动时出现呼吸困难入院。昨夜12点患者突然憋醒,端坐位,大汗淋漓,咳嗽,咳粉红色泡沫痰,心率120次/分,两肺满布湿啰音及哮鸣音,责任护士给予患者吸氧的正确方法是
A.
持续低流量吸氧
B.
高流量吸氧
C.
高流量酒精湿化吸氧
D.
低流量酒精湿化吸氧
E.
间断给氧
查看完整题目与答案
【单选题】According to the passage, unusual names come from______.
A.
popular culture
B.
parents' invention
C.
sports
D.
all of the above
查看完整题目与答案
【简答题】. 第二部分．阅读理解（共25小题。第一节每小题2分，第二节每小题1分；满分45分） “Linda, if beating yourself up were an Olympic sport, you’d win a gold medal!” Annabel, my close friend, stunned（使…震惊）me with that frank observation after I ...
查看完整题目与答案
【单选题】曲面 与平面 的交线是
A.
圆
B.
椭圆
C.
抛物线
D.
双曲线
查看完整题目与答案
【单选题】关于肠内营养制剂，下列哪项是不正确的
A.
以整蛋白为主的制剂适用于胃肠道功能正常者
B.
以蛋白水解产物为主的制剂适用于胃肠道消化吸收不良者
C.
有些肠内营养制剂含有谷氨酰胺和膳食纤维
D.
肠内营养制剂中可添加增强免疫的制剂
E.
肠内营养制剂中应添加胰岛素以防止出现高血糖
查看完整题目与答案
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