In recent decades jobs requiring middling skills have declined sharply as a share of total employment, while employment in high - and low-skill occupations has increased.
There are abundant fracture types including high angle shearing cracks, middling or low angle shearing cracks, transmeridional high angle tension cracks and meridional vertical shearing cracks.
裂缝类型包括，高角度（直立）剪切缝、低角度剪切缝、高角度张裂缝和南北向直立剪切缝。
3
RESULTS: 48.49 % had low score for self image and 72.64%had middling score for social support, only 27.36%had high score for social support.