【单选题】Passage Five When you speak, write a letter or make a telephone call, your words carry a message. People communicate with words. But do you think you can communicate without words? A smile on your fac...
【简答题】试根据下 表中的已知数据,填写表中各空格 公称 尺寸 孔 轴 X max 或 Y min X min 或 Y max T f 配合 种类 ES EI T h es e i T S φ 50 0 0.039 +0.103 0.078 φ 25 0.021 0 -0.048 0.037 φ 80 0.007 - 0.025 - 0.016 +0.023 -