Baoji tooth wash to Central Hospital

1. 1. Cross border e-commerce:
it refers to an international business activity in which trading entities belonging to different customs areas reach transactions, carry out payment and settlement through e-commerce platform, and deliver goods and complete transactions through cross-border logistics
2. Differences:
cross border e-commerce is quite different from general e-commerce in terms of transaction mode, goods transportation, payment and settlement. The current management system, policies, regulations and existing environmental conditions have been unable to meet its development requirements. The main problems focus on customs, inspection and quarantine, taxation and collection and payment of foreign exchange
3, Wen Hao Business School:
cross-border e-commerce + Internet plus global e-commerce. The training of cross border dry cargo skills training (Amazon training, express train, eBay training, wish training) is the core business, and has more abundant information on e-commerce, and it is a solid commodity. Through training, enterprises can have a more thorough understanding of cross-border e-commerce and achieve & quot; From nothing to existence, from being to meeting, from meeting to essence & quot; Cross border e-commerce experience.

2. International express: for example, DHL, FedEx, UPS, TNT, etc. the four major international express companies can regularly track the whereabouts of goods and assist in customs clearance, saving time and effort; The disadvantage is that the freight is expensive and there are strict requirements for the goods to be carried

postal parcels: for example, EMS, large and small parcels, surface mail, with a wide range of transportation coverage and no remote surcharge, overseas return fee; But the transportation time is long and the packet loss rate is high

special line: special line refers to the transportation line specially set up for a certain international or regional. The transportation time of special line is short, but the delivery area has certain restrictions, and it is not suitable for small bags; The modes of special line include railway, sea transportation and air transportation

overseas warehouse: Overseas warehouse is divided into self operated overseas warehouse, third-party overseas warehouse, FBA overseas warehouse and virtual overseas warehouse. In fact, it is also one of the channels of cross-border transportation, realizing the local distribution of foreign goods, with fast delivery time and good customer experience. Overseas warehouse includes three parts: first, storage and last

3.

There are four common logistics modes for cross-border e-commerce, namely: international express, postal parcel, special line and overseas warehouse; The disadvantage is that the freight is expensive and there are strict requirements for the goods to be carried

postal parcels: for example, EMS, large and small parcels, surface mail, with a wide range of transportation coverage and no remote surcharge, overseas return fee; But the transportation time is long and the packet loss rate is high

special line: special line refers to a special transportation line set up only for a certain international or regional area. The transportation time of special line is limited, but the delivery area is limited, and it is not suitable for small bags; The modes of special line include railway, sea transportation and air transportation

overseas warehouse: Overseas warehouse is divided into self operated overseas warehouse, third-party overseas warehouse, FBA overseas warehouse and virtual overseas warehouse. In fact, it is also one of the channels of cross-border transportation, realizing the local distribution of foreign goods, with fast delivery time and good customer experience. Overseas warehouse includes three parts: first, storage and last

4. At present, there are three logistics modes of cross-border B2C e-commerce: international parcel and express, overseas warehousing and large-scale transportation after gathering
international parcels include China post parcels, hongkong post parcels and Singapore post parcels, which are characterized by long transportation time. International Express has DHL and EMS, etc., which is characterized by high cost. These two are the most traditional and the most simple and direct way of logistics. For many enterprises that are not on the scale, international small package and express delivery are almost the only choice of logistics

overseas warehousing is to rent a warehouse abroad in advance, transport the goods to the warehouse by sea or air, and then deliver the goods directly from the warehouse after receiving the customer's order. Achieving the first mock exam is not easy, because although the cost of transportation in warehouses is much lower, it can also increase the speed of delivery, but the cost of construction and operation are very high.

there are two types of large-scale transportation after gathering. One is the enterprise's own goods collection transportation. This logistics transportation mode is mainly applicable to the B2C platform itself, that is, foreign trade companies. Enterprises purchase goods from domestic suppliers, sell them to foreign buyers through their own B2C platform, and earn profit margin by buying and selling. The other is to gather goods through the alliance of foreign trade enterprises, which mainly uses the principle of scale advantage and complementary advantages to unite some small foreign trade enterprises with similar goods to form a B2C strategic alliance and establish a common foreign trade B2C logistics operation center through agreement. The disadvantage of this type is that it has a long transportation cycle and complex logistics proceres, and enterprises need to invest a lot of money in the early stage. For many small and medium-sized foreign trade enterprises, the cost is unbearable.

5.

1. The combustion of honeycomb briquette will release carbon monoxide. When the concentration of carbon monoxide increases, it will cause carbon monoxide poisoning

The combustion of honeycomb briquette proces st and sulfur dioxide, and the harm is the respiratory system and blood circulation system

3. The smoke proced by long-term coal burning is not good for the lungs. It is easy to cause cancer. Too much psychological pressure. You lose your hair, too

extended data:

highly efficient and inflammable honeycomb briquette: proction technology: fast ignition for 2 minutes, the flame reaches one foot, the fire is fierce, boil a pot of water for 12 minutes. The briquette is easy to burn and ignites quickly. It can be ignited from the mouth of the furnace with a match. The flame can reach one foot in two minutes, and the fire temperature can reach 680 ℃,

and the flame size can be adjusted. It is easy to use. Like liquefied gas, it can be used at any time without sealing the furnace. It is smokeless, non-toxic and tasteless. Two briquettes can burn for 120-150 minutes at a time. Less investment, quick effect,

with ordinary bulk coal and several kinds of cheap raw materials and two kinds of additives, manual operation, with ordinary briquetting machine processing about 1200 yuan per person per day, the cost of each piece is 7 points,

market price is more than 0.18 yuan, such as building a three person small factory, using machine proction, annual profit reaches 500000 yuan, additives are sold in chemical stores all over the country. One ton of coal can proce 6000 pieces of inflammable honeycomb briquette

6. Honeycomb briquette can be more fully extended burning, that is, the coal is crushed, and then water and mud, not too thin, and then there is a very simple dozens of Yuan briquetting machine, which is very convenient to use.

7. The odor of burning honeycomb briquette is carbon dioxide
it may also be the odor proced by some garbage mixed with inferior honeycomb briquette.

8. Complete combustion of honeycomb briquette will proce carbon dioxide, greenhouse effect of furniture
incomplete combustion will proce carbon monoxide, pollute the atmosphere, and make people poisoned
moreover, combustion of honeycomb briquette will have small carbon black particles suspended in the air
sulfur dioxide can cause acid rain
honeycomb briquette has small calorific value, low energy conversion rate, and will consume a lot of fossil fuels, Waste of resources
the waste resie after combustion is difficult to degrade

9. Why to make coal into honeycomb briquette instead of directly burning briquette is a kind of inflammable honeycomb briquette, which is composed of raw coal, carbonized sawst, lime, red (yellow) mud, charcoal powder and other mixture base materials, and inflammable combustion supporting agent composed of nitrate and potassium permanganate Φ The test firing of 100 mm inflammable honeycomb briquette has the advantages of fast ignition, flame height over 140 mm, burning time up to 1 hour, smokeless and tasteless, and complete combustion