问题
问答题
热源的性质有哪些？
答案
参考答案：①热性、在180℃/3～4小时、250℃/30～45min方可破坏；②水溶性、其浓缩液带有乳光；③
不挥发性、但可随水蒸气雾滴带入蒸馏水中；④滤过性、能通过微孔滤膜等滤器，但能被反
渗透膜滤除；⑤被吸附性、可被活性炭吸附；⑥可被强酸、强碱、强氧化剂及超声波等破坏。
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热源的性质有哪些？
参考答案：①热性、在180℃/3～4小时、250℃/30～45min方可破坏；②水溶性、其浓缩液带有乳光；③
不挥发性、但可随水蒸气雾滴带入蒸馏水中；④滤过性、能通过微孔滤膜等滤器，但能被反
渗透膜滤除；⑤被吸附性、可被活性炭吸附；⑥可被强酸、强碱、强氧化剂及超声波等破坏。
| 根据对话内容，选择恰当的句子补全下列对话。 | |
A: What do you like doing? B: Singing. 1___________ A: You can't be a famous pop star unless you're really good. 2__________ B: Yes. I always play my guitar when I listen to pop music on the radio. 3__________ A: Great! Have you been in any pop star competitions in your school? B: 4__________ I didn't win the prize. A: That's too bad! B: But it doesn't matter. I'll keep working hard. 5___________ |