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问题 解答题

一根跳绳12元，一个足球85元，李老师带1500元钱买了12个足球剩下的钱能买多少根跳绳？

答案

（1500-85×12）÷12

=（1500-1020）÷12，

=480÷12，

=40（根），

答：剩余的钱能买40根跳绳．

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 remarks of the author’s friend in Paragraph 3 indicate that Europeans ______.

A. think highly of the American service
B. do not appreciate the American service
C. find it impossible to accept the American service
D. will gradually accept the American service
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单项选择题

某5层公建工程，条石基础，砖混结构，现浇钢筋混凝土楼板，局部采用防火玻璃隔断。首层跨度4.5m梁，起拱高度设计无具体要求。检查发现：模板支设起拱不符合要求;楼板中配筋为φ10mm×200mm，钢筋错放为吵φ8mm×200mm。

竣工五年后发生一次地震，房屋多处发生开裂，多处结构破坏。

作答下列题目：

本工程室内台阶踏步宽度不宜小于()mm，踏步高度不宜大于150mm。

A.150

B.200

C.250

D.300
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