每年的6月16日为全国“爱眼日”。 图中表示某二人看物体时的光路图，要在视网膜上成清晰的像，甲需配戴_______镜，乙需配戴______镜。希望同学们养成良好用眼习惯。

Stavros, Tina and Myria are equal shareholders in STM Ltd, together holding 60% of the share capital of STM Ltd. STM Ltd is a private limited liability company, which adopts Table A as its articles of association. Tina decides to transfer her shareholding in STM Ltd to her friend Tom, but Stavros disagrees. Stavros would like STM Ltd to issue shares at a premium, and to use the premium for writing off the company’s preliminary expenses.Required:Advise Stavros. (10 marks)