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【单选题】
该化合物 【图片】按照系统命名法2017的要求，正确命名为：A.
3- 甲基 -4- 氯 -5- 溴苯甲醛 3-methyl-4-chloro-5-bromobenzaldehyde
B.
5- 甲基 -4- 氯 -3- 溴苯甲醛 5-methyl-4-chloro-3-bromobenzaldehyde
C.
3- 溴 -4- 氯 -5- 甲基苯甲醛 3-bromo-4-chloro-5-methylbenzaldehyde
D.
5- 溴 -4- 氯 -3- 甲基苯甲醛 5-bromo-4-chloro-3-methylbenzaldehyde
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皮皮学刷刷变学霸
举一反三
【简答题】阅读理解 Benjamin Banneker was born a few months before another great American-George Washington. Benjamin was black, but he was not a slave.He and his mother and his grandmother were free. Benjamin's gra...
【单选题】在治疗师帮助或借助器械情况下,由患者通过自己主动的肌肉收缩来完成的运动训练。属何种运动方式
A.
被动活动
B.
主动辅助活动
C.
主动活动
D.
抗阻活动
E.
随意运动
【简答题】阅读理解。 APPLICATION FOR EMPLOYMENT （求职申请） Name Harry Smith Address 4224 Maple Avenue Oakland, California Telephone number 555-1660 Work Experience Company Ames Bookstore Greenfield High School Position ...
【简答题】城市垃圾的清运操作方法包括：移动式和。
【简答题】APPLICATION FOR EMPLOYMENT （求职申请） Name Harry Smith Address 4224 Maple Avenue Oakland, California Telephone number 555-1660 Work Experience Company Ames Bookstore Greenfield High School Position Boo...
【简答题】Henry was a boy of nine. He was born in a family. His father was often ill and couldn’t go to work. Only his mother worked in a factory. She worked hard and hoped to give her four children and husband...
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