Research of the effect of hidden blood loss after simultaneous bilateral total knee arthroplasty;

Relationship between hidden hemorrhage and spinal operation project;

Features and reasons of recessive unemployment in citys;

Under the effects of many causes, there exists serious recessive unemployment in the cities and towns and the rural districts of China, which causes immeasurable losses and damages.

As a social question,The recessive unemployment continuously receives widespread attention,this kind of phenomenon exists in urban and rural.

The loss of the amount of cultivated land includes not only the dominant loss caused by the absolute reduction in quantity, but also the recessive loss caused by the whole quality decrease.

At present,the implicit distortion of the news coverage is of the following six kinds: too much interpretation of the news events,entertaining,story-like account of the news coverage, the vagueness of the background for the news events,implict distortion and explicit distortion.