▁primary ▁level . ▁The ▁odd s ▁r ati os , ▁meaning ▁the ▁odd s ▁of ▁educational ▁att ain ment ▁in ▁Be ij ing ▁are ▁ 0 . 1 2 ▁at ▁the ▁primary ▁level , ▁ 1 . 3 5 ▁at ▁the ▁junior ▁secondary ▁level , ▁and ▁ 1 1 . 3 5 ▁at ▁the ▁senior ▁secondary ▁level . ▁ ▁Key ▁secondary ▁schools ▁ ▁Some ▁secondary ▁schools ▁are ▁designated ▁as ▁key ▁secondary ▁schools . ▁Be ij ing ▁had ▁ 6 3 ▁such ▁schools ▁in ▁ 1 9 8 1 . ▁ ▁V oc ational ▁secondary ▁schools ▁In ▁Be ij ing ▁gradu ates ▁of ▁junior ▁secondary ▁schools ▁may ▁enter ▁voc ational ▁secondary ▁schools . ▁These ▁schools ▁util ize ▁a ▁compet itive ▁adm issions ▁process . ▁Stud ents ▁may ▁complete ▁specific ▁special ties ▁or ▁courses ▁in ▁three ▁or ▁four ▁years . ▁In ▁ 1 9 9 0 ▁there ▁were ▁ 1 3 1 ▁voc ational ▁secondary ▁schools ▁in ▁urban ▁areas , ▁with ▁a ▁total ▁en roll ment ▁of ▁ 4 5 , 2 0 4 ▁students , ▁employ ing ▁ 7 , 0 8 4 ▁teachers ▁and ▁serving ▁ 4 5 , 2 0 4 ▁students . ▁At ▁that ▁time , ▁the ▁schools ▁offered ▁ 2 3 2 ▁special ties . ▁ ▁The ▁Be ij ing ▁government ▁established ▁voc ational ▁high ▁schools ▁in ▁ 1 9 8 0 . ▁That ▁year , ▁there ▁were ▁ 5 2 ▁of ▁these ▁schools ▁serving ▁ 4 , 4 0 0 ▁students . ▁At ▁that ▁time ▁they ▁provided ▁ 2