问题
单项选择题 B型题
可用来分离挥发油中羰基类和非羰基类化合物的试剂是（）
A.亚硫酸氢钠
B.氢氧化钠
C.邻苯二甲酸酐
D.硝酸银
E.硼酸
答案
参考答案：A
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可用来分离挥发油中羰基类和非羰基类化合物的试剂是（）
A.亚硫酸氢钠
B.氢氧化钠
C.邻苯二甲酸酐
D.硝酸银
E.硼酸
参考答案：A
| 阅读下列短文，根据短文内容完成文后表格中所缺信息，每空一词。 | ||||||||||||||||||
| If someone asks me, "Do you like music?" I will answer him or her, "Of course, I do."Because I think music is an important part of our lives. Different people have different ideas about music. For me, I like rock music(摇滚乐) because it's so exciting. And my favourite rock band is Foxy Ladies(酷妹). I also like pop music. My classmate Li Lan loves dance music, because she enjoys dancing. My best friend Jane likes jazz music( 爵士乐) .She thinks it is really cool. "I love dance music and rock very much,"says my brother, " because they are interesting." But my mother thinks rock is boring. "I like some relaxing(轻松的) music,"she says. That's why she likes country music, I think. Dear friends, do you like music? What kind of music do you like? | ||||||||||||||||||
Music—an important part of our lives
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