转子偏心时,最大的()出现在两个转子中心连线方向上,振动频率为偏心转子()频率。

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问题:

转子偏心时,最大的()出现在两个转子中心连线方向上,振动频率为偏心转子()频率。

考点:液化天然气操作工机械设备故障处理机械设备故障处理题库
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学校合唱队有6名男生,女生的人数是男生的4倍。如果每8名女生站一排,女生可以站几排?

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三碱基重复会引发哪些人来的遗传病?

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引起阻塞性窒息的原因不包括()

A.血凝块、呕吐物、异物等堵塞咽喉部造成窒息

B.血液、唾液、呕吐物或其他异物吸入气管、支气管或肺泡内引起窒息

C.上颌骨骨折骨块向下后移位堵塞咽喉部造成窒息

D.下颌骨粉碎性骨折或双发骨折时,降颌肌群牵拉,下颌骨向下后移位及舌后坠堵塞呼吸道造成窒息

E.口底、舌根等发生血肿或组织水肿,压迫呼吸道引起窒息

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阅读理解。

     High-quality customer service is preached(宣扬) by many, but actually keeping customers happy is easier said than done.

     Shoppers seldom complain to the manager or owner of retail store, but instead will alert their friends, relatives, co-workers, strangers and anyone who will listen.

     Store managers are often the last to hear complaints, and often find out only when their regular customers decide to frequent their competitors, according to a study jointly conducted by Verde group and Wharton school.

     "Storytelling hurts retailers and entertains consumers." Said Paula Courtney, president of the Verde group. "The store loses the customer, but the shopper must also find a replacement."

     On average, every unhappy customer will complain to at least four other, and will no longer visit the specific store for every dissatisfied customer, a store will lose up to three more due to negative reviews. The

resulting "snowball effect" can be disastrous to retailers.

     According to the research, shoppers who purchased clothing encountered the most problems. Ranked second and third were grocery and electronics customers.

     The most common complaints include filled parking lots, cluttered(塞满了的) shelves, overloaded racks, out-of-stock items, long check-out lines, and rude salespeople.

      During peak shopping hours, some retailers solved the parking problems by getting moonlighting local police to work as parking attendants. Some hired flag wavers to direct customers to empty peaking spaces. This guidance got rid of the need for customers to circle the parking lot endlessly, and avoided confrontation between those eyeing the same parking space.

     Retailers can relieve the headaches by redesigning store layouts, pre-stocking sales items, hiring speedy and experienced cashiers, and having sales representatives on hand to answer questions. Most importantly, salespeople should be diplomatic and polite with angry customers.

      "Retailers who're responsive and friendly are more likely to smooth over issues than those who aren't

so friendly." Said professor Stephen Hoch. "Maybe something as simple as a greeter at the store entrance would help."

     Customers can also improve future shopping experiences by filing complaints to the retailer, instead of

complaining to the rest of the world. Retailers are hard-pressed to improve when they have no idea what is wrong.

1. Why are store managers often the last to hear complaints?

A. Few customers believe the service will be improved.

B. Customers would rather relate their unhappy experiences to people around them.

C. Customers have no easy access to store managers.

D. Most customers won't bother to complain even if they have had unhappy experiences.

2. Shop owners often hire moonlighting police as parking attendants so that hoppers         .

A. can find their cars easily after shopping

B. won't have trouble parking their cars

C. can stay longer browsing in the store

D. won't have any worries about security

3.What contributes most to smoothing over issues with customers?

A. Design of the store layout.      

B. Hiring of efficient employees.

C. Manners of the salespeople.    

D. Huge supply of goods for sale.

4.To achieve better shopping experiences, customers are advised to        .

A. voice their dissatisfaction to store managers directly

B. shop around and make comparisons between stores

C. settle their disputes with stores in a diplomatic way

D. put pressure on stores to improve their service

题型:填空题

慢性肾功能不全时,引起继发甲状旁腺功能亢进的原因是

A.血钾升高

B.血肌酐升高

C.血磷升高血钙降低

D.BUN升高

E.二氧化碳结合力降低

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