混合式教学是指： Blending learning aims to:
A. 线上对知识性内容的自我学习和研究 Enhance self-study through Internet courses
B. 线下实践课、体验课老师与学生深入的交流和互动 Create more interaction between teacher and students in classrooms
C. 线上对知识性内容的预习 Gain the preview of each internet courses
D. 线下实践课、体验课对知识的巩固 Have a better review on every workhouse lesson
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版画用来做公共艺术教育的优点是？ What is the advantage of printmaking used for public art education?
A. 公众可以比较容易的看到艺术品原作 The public can appreciate the originals easily
B. 版画的可操作性和程序性很适合公众的动手体验 There are clear procedures for people to follow，everyone can create their own works
C. 版画的不确定性可以让公众体验艺术创造的乐趣 The uncertainty of printmaking allows the public to experience the joy of artistic cteation
D. 版画制作入门简单易学，人人可以上手The introduction of printmaking is simple and easy to learn
铜版腐蚀需要注意哪些安全措施？What are the safty precautions of copper corrison？
A. 保持环境通风 Maintain ambient ventilation
B. 带胶皮手和防毒口罩 Wear rubber gloves and mask
C. 不小心沾到酸液迅速用清水冲洗 If you accidentally get acid，please rinse your hand with clean water
D. 铜版表面要涂防腐材料 Prepare Anti-rot materials on copper plate
下面腐蚀液的废液处理的正确方式是： How to deal with the waste properly？
A. 继续往里加新酸 Adding new acid to it.
B. 通过酸碱中和后倒掉 Nautralized by an acid base and then dumped
C. 装桶集中处理 By centralized processing in certain containers.
D. 直接与生活用水一起冲掉 Flushing it away randomly.
下面属于凹版感光制版的是：The photogravure techniques includes:
A. 数码微喷 Digit-micro spray
B. 铜版感光制版 Copper-photosensitive plate
C. 树脂版感光制版 Resin-photosensitive plate
D. 石版感光制版 Lithograph-photosensitive plate
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