黄铜管(用于冰箱冷凝器及蒸发器)

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问题:

黄铜管(用于冰箱冷凝器及蒸发器)

考点:海关报关员考试报关员综合报关员
题型:填空题

以下有关动物运动和行为的叙述,错误的是(  )

A.关节囊使关节更加牢固

B.海豚顶球表演是一种学习行为

C.蜜蜂利用舞蹈传递食物信息

D.蚂蚁不具有社会行为

题型:填空题

某商场销售一种夹克和T恤,夹克每件定价100元,T恤每件定价50元,商场在开展促销活动期间,向顾客提供两种优惠方案.

方案一:买一件夹克送一件T恤

方案二:夹克和T恤均按定价的80%付款

现有顾客要到该商场购买夹克30件,T恤x件,(x>30)

(1)若用方案一购买夹克需付款  元,T恤需付款(用含x的式子表示)   元,

若用方案二购买夹克需付款   元,T恤需付款(用含x的式子表示)    元;

(2)按方案一购买夹克和T恤共需付款             元,

按方案二购买夹克和T恤共需付款             元,

通过计算说明,购买多少件时,两种方案付款一样多?

(3)当x=40时,你能给出一种更省钱的方案吗?写出你的方案.

题型:填空题

制冷机组的综合平均性能系数IPLV是指()

A.在额定工况下,制冷机的制冷量(kW)和输入电功率(kW)之比

B.在额定工况下,制冷机的输入电功率(hW)和制冷量(kW)之比

C.制冷机组全年运行输入电功率(kW•h)和全年运行制冷量(kW•h)之比

D.制冷机组全年运行制冷量(kW•h)和全年运行输入电功率(kW•h)之比

题型:填空题

根据土的分级属于Ⅲ级土的是( )。

A.砂土
B.含少量砾石的黏土
C.壤土
D.含卵石黏土

题型:填空题

People in the mass advertising business and others who study American society have been very interested in the question: What does the American consumer like Max Lerner, a well-known scholar who has studied American society, has said that American consumers are particularly fond of three things: comfort, cleanliness, and novelty.

Lerner believes that the American love of comfort perhaps goes back to the frontier experience, where life was tough and there were very few comforts. This experience may have created a p desire in the pioneers and their children for goods that would make life more comfortable. Today, the American’s love of comfort is seen in the way they furnish their homes, design their cars, and travel. How Americans choose a new mattress for their bed is an example of the Americans love of comfort. Many Americans will go to a store where beds are set up, and they will lie down on several mattresses to see which one is the most comfortable.

Cleanliness is also highly valued by Americans. There is a p emphasis on keeping all parts of the body clean, and Americans see lots of TV commercials for soap. shampoo, deodorants, and mouthwash. Perhaps the Puritan (清教徒的) heritage has played some role in the desire for cleanliness. The Puritans, a strict Protestant (新教的) church group who were among the first settlers of America, stressed the need to cleanse the body of dirt and of all evil tendencies, such as sexual desire. The saying "Cleanliness is next to Godliness" reflects the belief of most Americans that it is important to keep not only their bodies, but also their clothes, their houses, their cars, and even their pets clean and smelling good. Indeed, many Americans are offended by anyone who does not follow their accepted standards of cleanliness.

Along with cleanliness and comfort, Americans love having things that are new and different. Perhaps this love of novelty comes from their pride in their inventiveness. American have always been interested in inventing new products and improving old ones. They like to see changes in cars, clothing, and products for the home. Advertisements encourage people to get rid of old products and try new ones, whether the old ones still work or not. And if they cannot afford to buy something now, advertisers encourage consumers to charge it on a credit card. "Buy now-pay later. \

According to the passage, Americans take pride in their ()。

A. standards of cleanliness

B. inventiveness

C. old products

D. comfortable life

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