题干

如图所示的四种情景,下列有关说法中正确的是(   )

A:道路两旁的隔音墙是在声源处减弱噪声

B:用“B超”检查身体是超声波在医学中的应用

C:太空中宇航员能对话,说明声音可在真空中传播

D:能从不同乐器中分辨出小提琴的声音主要是因为响度不同

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B

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    Allow me to introduce you to Terry, a window salesman from England. If I could take you back about 20 years, you'd know Terry as a complete green hand, who was wet behind the ears in just about everything he attempted. A person couldn't sell false teeth to his own Granny, let alone he could compete with the other salespeople in the industry. You know, the kind who could sell snow to Eskimos.

    Terry's boss decided to send him out on a practical field trip on his first day. So off he went, but he was extremely nervous. With his hands and his knees shaking, he approached the front door and knocked at it. And an old woman appeared. After dozens of cups of tea and pieces of biscuits, the woman signed a contract and purchased over $7,000 worth of windows.

    The woman had already talked with 6 excellent salesmen that week, all of whom offered her cheaper ones! That's right—Terry's price was the most expensive and he was also the most inexperienced salesman there ever was.

    So, what happened then? Here comes the secret. The woman said she liked the young lad more than the others. That's all there was to it. She didn't care about the extra expense. Even the other salesmen couldn't persuade her to pay less than this young lad was asking for.

    The truth is that the young lad left on the woman the first impression that shone brighter than any of the salesman's talk. First impressions count, not the sales techniques, not the low prices. The actual “personality” the kid honestly gave was all that was required. If you market your own products and services, consider what impression you are giving to others. If you appeal to them, then you've already done half of the work. If this means redesigning your presentation, then so be it. If this means going out of your way to be polite, helpful and giving the best possible shopping experience to your customers, the so be it.