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问题 填空题

把正在响铃的闹钟放在玻璃罩内，逐渐抽出其中的空气，可听到闹钟的铃声逐渐减弱，到最后就听不到了．重新向玻璃罩内注入空气又听到了闹钟的铃声．这说明，声音要靠______传播，日常我们听到的声音是靠______传来的，实际上______和______也能传声，______不能传声．

答案

重新向玻璃罩内注入空气又听到了闹钟的铃声，这说明声音要靠介质传播；

日常我们听到的声音是靠空气传来的，实际上液体和固体也能传声，真空不能传声；

故答案为：介质，空气，液体、固体，真空．

单项选择题

Is the customer always right The answer, it seems, depends on which country you are in. Shopping is very much a part of a country’s culture, and attitudes to shopping and consumers vary from country to country just as much as climate or taste in food. From the air-conditioned American shopping centers to the street market of African towns, the way we shop shows the way we see ourselves and our relationships with other people.
Business competition in Europe has given consumers increased power. This has meant falling prices, plenty of special offers and a re-examination of what customer service really means. People often point to America as an example of excellent customer service. In restaurants in the south of the USA, for example, waiters compliment you on your clothes, ask about your day, compliment you on the wisdom of your order and then return every ten minutes to refill your glass and make sure that everything is to your satisfaction.
Anyone who has waited 30 minutes to be served in a restaurant might well dream of such attention, but do Europeans really want US style service As a friend of mine once told me, "By the end of the evening I had spent as much time talking to the waiter as to my wife. " It is a question of expectations. Different nationalities expect different types of service.
A Chinese-American friend loves telling people about how her Chinese mother shops for clothes: "First of all she waits until they are on sale, then she bargains until she gets an even better price and then she finds some small fault with the product and demands a further reduction. She never buys anything at the regular price. " Could you imagine trying such tricks in a department store in your country
Attitudes to service are, of course, affected by employers’ attitudes to their workers. As American sales and service personnel are heavily reliant on commission and tips, they have more motives to provide more service. But is this fair Do we think it is fair to ask shop assistants to work late evenings, Sundays and 12 hour shifts It might not be a case of "Is the customer always right" but a case of "How much service is it fair to expect\

The word "compliment" in Paragraph 2 is closest in meaning to ______.

A. evaluate
B. criticize
C. praise
D. laugh at
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单项选择题

一患者被毒蛇咬伤后，局部不红不肿，无渗液，麻木，淋巴结肿大。头晕、出汗、胸闷、四肢无力；严重时出现瞳孔散大、语言不清、牙关紧闭、昏迷。证属：（）

A.风毒证

B.火毒证

C.风火毒证

D.热毒证

E.湿毒证
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