A. She was a regular customer and knew it well. B. She learned about it from a TV commercial. C. The receptionist recommended it to her. D. She read about it from a brochure. 参考答案:D
第3题: [单项选择]砂试验烘箱温度为()。 A. 90±5°C B. 100±5°C C. 105±5°C D. 110±5°C 参考答案:C