The influence of the difficulty of the target problem namely the related isomorphic problems which have some surfase similarity, and the awareness of the related problems of solvers had been examined by experimental research.

A method of regression diagnostics based on complex collinear relational design matrix;

Discussion on the application of public relation in hospital library;

On the action of public relation in the develop of construction enterprise;

Study on public relation in urban planning;

The Study on Symbiotic Relationship between Producer Services and Manufacturing

tomentosa are divided into 14 types,8 of them are the ectomycorrhizae or pseudomycorrhizae, which have a bad or worse symbiotic relationship with the host plant, except type 1 ( Tricholoma columbetta ),type 2 ( Laccaria laccata ),type 4 ( Cenococcum geophilium) ,type 9 and type 11.

Symbiotic relationship stressed achieving the win-win between economic and ecological benefits and between the enterprises of the two sides.

The TEM analysis shows that Cu 5Zr and CuZr dispersoids phases are obtained, Cu 5Zr and CuZr has the common lattice relationship with crystal plane of the original monocrystalline Cu, and the dispersoids phase increaseds and enlarges with raising of the dose of Zr +.