Hello to you all,
I �m in the middle of lessons about jobs. On the internet I found an interesting cover letter, but I have some problems with and I can �t teach what I don �t really know!!!!
 Could you help me better understand this paragraph, please? 
 
Through my degree course, I have been able to
develop my interest in biochemistry, whilst improving my laboratory skills
along with my numeracy skills. I have gained some experience in HPLC and have
good computing skills, having used several scientific databases. I achieved 68%
in my first year examinations and am hoping to achieve a high 2:1 for my course
work this year. 
 
 My questions are:
     1-  What �s HPCL? (I suppose it has to do with science and I need to know what the letters stand for)
      2- What does a high 2:1 mean? 
 
Thank you very much for your answers.
Murielle