One is what a brush is, what is a stroke

This can be filled in like this:

A paintbrush, a paintbrush, a paintbrush, a box of brushes.

Paintbrushes mainly refer to oil brushes and gouache brushes, which are generally made of animal coarse hair or delicate fibers, with different sizes and varieties. The main use is color painting, oil painting, etc.

One brush, one tube of brushes.

Branch. When using quantifiers:

1) It is used for counting rod-shaped items. Such as: a pen; A gun.

2) Used to count teams, etc. Such as: an army; A cultural team.

3) It is used to count songs, songs, etc. Such as: a song; Two pieces of music.

4) It is used to measure the luminosity of the lamp, that is, the wattage of the power of electricity. For example: 25 light bulbs.

A brush, a box of brushes, a box of brushes, ......You can also group a lot!

one, the concept of a one-stroke painting

1. A stroke is to discuss whether a certain figure can be drawn with a stroke. Any endpoint in a graph is divided into singularity and even points based on the number of connected lines. Only shapes with even points and shapes with only two singularities can always be drawn in one stroke.

There is no restriction on the starting point of the figure with only even points, and two singularities must start from one point and end at the other.

2. Any connected graph with only two singularities.

The rest are even dots), which can definitely be painted in one stroke. One singularity must be the starting point and the other singularity the end.

3. Any connected diagram composed of even points must be drawn in one stroke. You can start with any even point when drawing, and you will be able to finish the picture with this point as the end point.

2. Determine whether a figure is a one-stroke drawing

1. As long as you count how many singularities there are in this graph, if the number of singularities in this graph is 0 or there are only 2 singularities, then this graph can be drawn in one stroke.

A stroke is a stroke with no interval in between.

A stroke is completed without a break in between.

Brushes generally refer to the brushes used for painting, and there are many types.

The types of brushes include oil brushes, crayons, gouaches, charcoal, markers, brushes, pencils, colored pencils, finger sassafras pens, oil pastels, ordinary pencils, etc.

Brushes mainly refer to oil brushes and water pastel brushes, brushes are generally made of animal coarse hair, or delicate fibers, with different sizes and varieties. The main use is color painting, oil painting, etc.

Different brands of brushes have different hair compositions. For example, pens made of animal hair and nylon have different feelings when drawing depending on the shape and size of the pen. When we first started to learn to draw, we only needed to prepare flat-head brushes, round-tip brushes and outline brushes to basically meet the needs of painting.

Flat brushes are used to paint large areas, while outline brushes are used to draw out thin lines.