问题
填空题
苯胺点是表示油品中（）的指标，苯胺点越低，油品中（）含量越高。
答案
参考答案：芳烃含量、芳烃
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苯胺点是表示油品中（）的指标，苯胺点越低，油品中（）含量越高。
参考答案：芳烃含量、芳烃
根据对话 内容，从下面方框中选择适当的单词或短语填空，使对话内容完整正确。 | |
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| A: I know that George Gershwin is a great American composer, but that's all I know about him. Can you tell me something more about him? B: Yes, he's very 1 not only in the USA, but also in many other countries in the world. He composed music, and he also wrote songs. A: He could also write songs? That's interesting. Do you enjoy 2 his songs? B: Yes. My favourite is Our Love Is Here to Stay. It is one of his best songs, but also one of his last songs. A: Oh, what is his most famous work? B: Well, he wrote a lot, and 3 them are popular. Many people think An American in Paris is his best work for orchestra. A: And 4 Gershwin's life? B: He was born in New York in 1898. By the age of fourteen, he had taken piano lessons with five teachers and had learned to play better than all of them. At the age of fifteen, Getshwin left school and took a job in a music company. A: Did he continue to write until he died? B: Yes, he did. In the summer of 1937, while working in Hollywood, he 5 ill and died of cancer at the age of thirty-nine. A: That's sad. |