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【多选题】
FDM 成型后处理工序对制件精度及性能影响表述正确的有 ( ) 。A.
制件完成后，由于周围温度、湿度等环境的变化，一定会导致成型制件发生变形。
B.
在剥离废料的过程中，可能会划伤成形制件的表面，从而影响成形制件的表面精度。
C.
修补、打磨、抛光可能会影响成形制件的尺寸及形状精度。
D.
当支撑材料难以去除时，去除支撑材料容易影响成形制件的表面精度。
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【简答题】用所给词汇的适当形式填空。 1. The story is ______ (help) to young people. 2. I am very ______ (interest) in comic books. 3. She is one of the best______ (run) in our school. 4. How much ______ this pair of shoes _...
【判断题】When using a concentrated marketing or niche marketing strategy, a firm goes after a small share of a large market.
A.
正确
B.
错误
【单选题】A successful niche marketing strategy relies on a firm's ________.
A.
availability of services
B.
product positioning
C.
superior products
D.
knowledge of customer needs
E.
affordable pricing
【简答题】Niche marketing (get) __________ popular because businesses like Jollibee are very successful.
【简答题】Consultants sometimes advise companies to focus more on niche marketing.
【简答题】用所给词汇的适当形式填空，每词限用一次。（5分） stay angry do advice different 1．We’re ____▲_____ Tibet for two months. 2. I have a lot of problems, can you give me some ____▲_____. 3. Sally finished _____...
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