A:迷迭香酸属于芳香族化合物,分子式C18H18O8
B:迷迭香酸含的官能团只有:羟基、羧基、酯基
C:1mol迷迭香酸最多能和含7mol Br2的浓溴水发生反应
D:1mol迷迭香酸最多与含5mol NaOH的水溶液完全反应
蜜蜂的可贵之处在于勤勉、博采、奉献;喜鹊热爱生活,知足常乐,积极向上,充满正能量:啄木鸟最大特点是善于发现问题、勇于解决问题。《人民日报》2016年7月18日发文,要求党员干部“工作像蜜蜂、生活学喜鹊、作风如啄木鸟”。这对政府工作人员的启示是( )
①恪尽职守、不计得失、敢于担当
②不求利益、攻坚克难、善谋勇为
③深入群众、奋发进取、主动作为
④体察民情、以身作则、立党为公
Look! Lucy is ________ a new red dress. She is beautiful today.
During holidays,Kitty usually goes to see the exhibits in many museums,such as the history museum,the art museum,the museum of science and technology and the museum of natural history.There are thousands of wonderful things in museum.There are paintings,sculptures(雕塑),costumes(服饰),swords(剑),ancient animal bones and plants,stuffed animals(动物标本)and many others.It is always a good review of history to visit those museums.It is also a great way to learn more things by myself.
—Let's go swimming.
—That sounds _________.
课外阅读课上.老师将一批书分给各小组.若每小组8本.则还剩余3本:若每小组9本.则还缺2本.问有几个小组.(根据题意设未知数,只列出方程即可)