某有机物的结构为,下列说法正确的是 A.不能跟NaOH溶液反应 B.能使酸性KM 发布时间:2017-06-16 13:32 │ 来源:www.tikuol.com 题型:选择题 问题: 某有机物的结构为,下列说法正确的是A.不能跟NaOH溶液反应 B.能使酸性KMnO4溶液褪色C.能发生酯化反应D.与乙酸互为同系物
题型:选择题 大米久置后易霉变而产生黄曲霉毒素(AFTB),其分子结构式如右图所示,人体的特殊基因在黄曲霉素的作用下会发生突变,有转变为肝癌的可能。一般条件下跟1mol AFTB起反应的NaOH或H2的最大量分别是( )A.1mol;5mol B.1mol; 6molC.2mol;5mol D.2mol; 6mol 查看答案
题型:选择题 Questions 14-23 ·Look at the ten statements for this part. ·You will hear a passage talking about the use of "eye "phrases. ·Decide whether you think each statement is right(R), wrong(W) or not mentioned(NM). ·Mark your answers on the Answer Sheet.To pull the wool over a person’s eyes means to cheat somebody and make him believe what is not right.A.RightB.WrongC.Not Mentioned 查看答案