未知题型 听力原文：WA I'm interested in your packaging system, but it's so much more expensive than your competitors'.MB You're right. Our prices are definitely higher than systems from other brands in the same category, but every system we sell is supported with extensive on-site training, and the best long-term service plan in the industry. That's all included in the price I just gave you.WA What makes the service plan so superior?MB We'll send a technician out to your site every six months to calibrate the equipment and do routine maintenance. This alone should eliminate your need to make service calls. But if you ever DO need service, we'll send a technician out the same day, at no charge, for as long as you own the system.According to the man, why are his company's systems more expensive than others?A．They are made with high-quality parts.B．They come with training and maintenance plans.C．They are built according to customer specifications.D．They have more functions than systems made by competitors.

未知题型 肋( )。

单项选择题 听力原文： Good morning, everyone. Thank you for joining our training course. I'm your personal trainer, Davidson, and I'm going to give a demonstration how to use this machine: the first thing you will do is sit on the machine. There will be handles by your head. Reach for the handles. You will work this best if your arms are not stretched out but at an angle. If you have to reach too high, the seat is too low. The seat is easily adjustable. Gym equipment in general is made for men. At 5 feet 4 inches tall I always put any seat I am on at the lowest or highest level depending on the piece of equipment. For those of you who know machines my setting is usually 5. I moved the seat up as high as it went and I was able to reach the upper bars without them outstretched. It was very comfortable. My feet did not need to touch the floor. The upper handles are nicely padded no need to wear gloves with this machine.Where does this talk probably take place?A．At the gymnasiumB．At the university classroomC．At the Davidson's officeD．At the auditorium