How to find the unit 1

Find unit one, look at the abstract score first, and then find the key words.

Formula: the unit after "Yes", "Proportion", "Occupation" and "Equivalent" is one; In front of "De" is a unit. What is a boy's score for a girl? Girls are the first unit. There are a little more girls than boys. The number of boys is the first unit "?

Units refer to organs, organizations or departments subordinate to organs and organizations; Refers to the name of the standard quantity for measuring things in mathematics or physics. Generally, there are: meters (m), kilometers (km), cattle (ton) N, pa (ska) PA and other units; ? In the traditional sense of Buddhism, units refer to quantitative units such as length, quality and time. And there are special terms such as: moment, moment, snap of fingers, moment and so on. Accurately speaking, a unit is a group of a certain amount of substances defined as "1" to become a unit. Broadly speaking, unit is a relative concept and an abstract concept, which can form an individual on the coordinate axis of the object coordinate system. The smallest unit of things is zero.

According to the use area of the unit, it can be divided into local units and international units:

1, local units, only applicable to units in a certain area, beyond this range may not be recognized, such as the length of feet in China, Zhang; Gold, money, etc. Mass unit.

2, the international unit, is the international unit, the unit is applicable to any place.

The unit names and symbols of some physical quantities are listed below.

Length: Mimi

French: Fr for short,1fr ≈ 0.33mm.

Gauge: abbreviated as G or GA, suitable for 20-30G, (36- corresponding G number) /20≈ needle diameter (mm).

Adapt to below 20G: (24- corresponding to G size) /5≈ needle diameter (mm)

Mass: kg kg

Time: seconds

Current: ampere (ampere) a

Thermodynamic temperature: Kelvin K.

Amount of substance: moles.

Luminous intensity: candlelight cd