问题
填空题
硫化橡胶回弹性性能测定,标准试样厚度应是()mm,直径为()mm的圆盘。
答案
参考答案:12.5士0.5;29士0.5
硫化橡胶回弹性性能测定,标准试样厚度应是()mm,直径为()mm的圆盘。
参考答案:12.5士0.5;29士0.5
选择正确词组(每小题1分,共6分)
温馨提示:注意词型的适当变化 1. After ________the university, he was employed by an oversea company. 2. It seemed that the whole city lay _________after the flood. 3. _________he hurried his breakfast and washed the smelly clothes. 4. I like swimming while my son __________playing with toy blocks 5. I have made it clear that I will never________ to anybody. 6. I don’t ________the price, so long as the air-conditioner is of fine quality. |