题目

    Mum，you're always on the computer！ Laure complained.     No，I'm not， I   36   ．     Every day I come home from school you're working on the computer.     Well，at least I'm here   37   you！     My daughter was right. Day after day，in my home office，I would stare into space as my   38   typed out the thoughts of a speaker or research completed for an article. It seemed that my work as a writer and speaker   39   my fingers to the keyboard and my mind to valuable ideas. What Laure did not   40   was that during her day away，I'd als小明买来一满桶仙鹤牌酱油，他用小铁钉在密闭口A处扎了一个小洞，发现酱油倒不出来，原因是              ，有效的解决措施是              ．