your score does not meet the minimum eligbility to apply under NOC 2174 (which is level A). read pg 16 of this guide:
http://www.cic.gc.ca/english/resources/manuals/op/op25-eng.pdfAs per the guideline to meet the language eligibity under NOC level 0 or A, you either have to have 7 in all four areas (listening, speaking, reading, writing) or you can have 6 for any one ability, 7 or higher for any other two, and 8 or higher for the remaining ability. So, based on your score:
Listning : 7.5 (7 or higher for any two ability)
Speaking : 7.0 (7 or higher for any two ability)
Reading : 6.0 (6 for any one ability)
Writing : 6.0 (8 or higher for the remaining ability)
you needed 8 in one of the abilities, because rest of your score was okay.