Card, etc. ), why do some places (hotels, banks) only recognize ID cards?

Card, etc. ), why do some places (hotels, banks) only recognize ID cards? Of course, this is because hotel accommodation needs to verify that the ID card is mine, and banks also need to verify that the ID card is mine before they can handle their own business.

Why do some places need an ID card to buy a mobile phone recharge card, and some places don't? Thank you for your help. In fact, this procedure is becoming more and more common now. . I need an ID card, because I have registered. . Some people break the law by telephone. It can be convenient to inquire in the future. . Or if the mobile phone is lost, it is easy to reissue the card.

Why don't you use a password to swipe your bank card in some places, or abroad?

Why do I need an ID card to stay in a hotel? It is legal to have an ID card to stay in a hotel. One is to confirm the identity of the hotel owner, which is a constraint on the behavior of the hotel owner during his stay. The other is to confirm the operation behavior of the hotel, which is a constraint on the legitimate operation of the hotel. Traditionally, China should have a hotel registration system since the Qin and Han Dynasties, but at that time, there was no identity card, and all the registered hotels were official brand names.

What is the letter at the beginning of each province in the ID card? Where's G? Why are the digits of ID cards different in some places? The first 17 digits of the ID number are all numbers, and the last digit may be an X or a number. Why does it start with a letter?

The number of digits is different because the number of 1 first generation card is 15 digits, and the number of second generation card is 18 digits.

I know why I need to register my identity card when staying in a hotel, because the state stipulates that it is convenient for the police to investigate whether a prisoner is staying in a hotel, it is convenient for tourists to find lost family members, and it is also convenient to prevent juvenile sex crimes.

Why do some places think No.4 is Tomb-Sweeping Day, while others think No.5? This year is April 4th, and everywhere is 4th.

But it also fell on the 5th in previous years, and it may be different every year, but it is consistent all over the country.

Tomb-Sweeping Day is a traditional folk festival in China, which usually falls around April 5th in Gregorian calendar. Why?

The almanac records: "Fifteen days after the vernal equinox, fighting refers to Ding, which is Qingming."

One revolution of the earth is 360 degrees of the yellow meridian. When the earth reaches zero degrees of the yellow meridian, it is designated as the vernal equinox, and then there is a solar term every 15 degrees, and * * * has 24 solar terms. Therefore, the dates of solar terms in the solar calendar are fixed, and there will be two-day differences in leap years.

The lunar calendar is a yin-yang calendar that reflects phenological changes and guides agricultural time. It also combines the lunar calendar, that is, the lunar phase is 29.5 days (the time interval from one full moon to the next). Because calculating the specific time of solar terms in the lunar calendar requires accurate astronomical knowledge and mathematical knowledge, the occurrence time of each solar term in the previous almanac was required to be promulgated by the state (for example, beginning of spring is accurate to the time of year, month, day and minute).

A slightly more complicated calculation is that the winter solstice of the previous year (when the sun is the least in a year) 105 is cold food, and 106 is Qingming; It's much simpler according to the solar calendar. April 5 or 4 (depending on February 29 of that year) will do. Astronomically speaking, on April 5 or 6, when the apparent sun (that is, the position of the sun on the ecliptic) reaches 15 degrees.

Why there is more rainfall in some places and less rainfall in some places! Mainly determined by topography and water vapor content. The low water content in desert is only one factor, but it is not decisive. Terrain determines the climate where it is difficult to form precipitation. Professionally, it is impossible to form a "front". Even close to the ocean, saturated water vapor can be unimpeded over the desert. Moreover, the temperature over the desert is high, and the water vapor will not condense when it is cold. Go to areas where fronts are easy to form. When the saturated water vapor rises and the temperature drops, it has the condensation effect of condensation nuclei, and the air buoyancy can't support it, there will be precipitation such as rainfall and snowfall. The formation of most deserts is a natural phenomenon. Although it is impossible for human beings to build a large area, they can intervene. For example, man-made destruction of vegetation and relatively flat terrain will easily lead to desertification of soil and ground rocks, and it will spread quickly. Close to the city, the windy season will cause sandstorms.

Why do some hotels "only accept mainland guests with ID cards"? If you don't have the qualification to receive foreign guests, you need to meet certain star standards and be approved by relevant departments for the record.