问题
单项选择题
将粉碎的药材浸泡润湿后，直火加热蒸馏或通入水蒸气蒸馏，药材中的挥发成分随水蒸气蒸馏而带出，经冷凝后分层，收集挥发油的提取方法是（）
A．浸渍法
B．水蒸气蒸馏法
C．煎煮法
D．渗漉法
E．回流法
答案
参考答案：B
解析：
[知识点] 常用浸提方法与设备
搜题请搜索小程序“爱下问搜题”
将粉碎的药材浸泡润湿后，直火加热蒸馏或通入水蒸气蒸馏，药材中的挥发成分随水蒸气蒸馏而带出，经冷凝后分层，收集挥发油的提取方法是（）
A．浸渍法
B．水蒸气蒸馏法
C．煎煮法
D．渗漉法
E．回流法
参考答案：B
解析：
[知识点] 常用浸提方法与设备
| 阅读理解。 | ||||
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| 1. The Long Night was written by ______. | ||||
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| A. David Reilly B. Maha C. Joanna D. Marcie Jacome | ||||
| 2. The story of Hard Work happened in ______. | ||||
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| 3. From the passage we can see Tina is ______. | ||||
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| A. a doctor B. a film star C. a writer D. a college (大学) student | ||||
| 4. ______ is about a difficult journey. | ||||
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| A. Hospital or Cinema B. Hard Work C. The Long Night D. Harry Potter | ||||
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[ ] | ||||
| A. an advertisement (广告) B. a story C. a novel D. a diary |