Test center analysis test center is the content of garden planting project, which belongs to professional and technical knowledge test questions:

Combined with the teaching materials, the contents about tree shaping and pruning are as follows:

In the maintenance stage of trees, it is necessary to adjust the tree shape, balance the tree potential, adjust the ventilation and light transmission of trees and the distribution of soil nutrients, and adjust the relationship between plant communities. Promote the growth of trees. The pruning of all kinds of seedlings is mainly based on natural tree shape.

Trees: under the premise of ensuring the tree shape, mainly prune long branches, pests and diseases branches, cross branches, combined branches, drooping branches, sprained branches and dead branches.

Shrubs: Shrubs are pruned according to the principle of "from top to bottom, from inside to outside, from weak to strong, from old to new". Pruning will make the branches and leaves lush, evenly distributed and spherical, and pruning of flowering shrubs will help promote the formation of short branches and flower buds.

The pruning of garden trees can be carried out all year round, but large-scale pruning should be carried out in the dormant period to avoid excessive bleeding and affect the tree potential. The pruning degree can be divided into three types: full crown type, pruning type and dry cutting type. The principle of full crown should keep the original branches, and only cut off long branches, horizontal branches, dead branches of pests and diseases and too dense branches, which is suitable for tree species with weak germination ability. After cutting, the crown will recover quickly and the landscape effect will be good. Pruning only keeps the third branch of the crown and cuts off the upper part, which is suitable for trees with fast growth and strong germination ability.

Therefore, it can be judged that B and E are interference terms.