()型机器人通过沿三个互相垂直的轴线的移动来实现机器人手部空间位置的改变。
A. 直角坐标
B. 圆柱坐标
C. 极坐标
D. 关节型
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保养和修理工作前必须关闭机器人系统，以防止机器人被未经允许误动作。
A. 对
B. 错
所有在机器人系统的危险区域内工作的人员必须穿戴防护服装和用品。
A. 对
B. 错
21. Priestly criticizes her assistant for her
A. [A] poor bargaining skill.
B. [B] insensitivity to fashion.
C. [C] obsession with high fashion.
D. [D] lack of imagination.
22. According to Cline, mass-market labels urge consumers to
A. [A] combat unnecessary waste.
B. [B] shut out the feverish fashion world.
C. [C] resist the influence of advertisements.
D. [D] shop for their garments more frequently.
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