In order to design and provide good services,it is necessary for students to describe and understand the customer requirements for services rapidly,to design an
The drastic shrinking of semiconductor linewidths has led to a need for new wafer cleaning strategies in the FEOL. For past technology generations, particle rem
高一英语课本里,这样记述了登月第一人尼尔·阿姆斯特朗在月球上说的那句名言:“That’s one small step for(a)man, one giant leap for mankind.(这是一个人的一小步,却是人类的一大步。)”懂英文的好奇心宝宝们就问了,为什么“a”还打个括号来补充,难道是身为英语土著的阿姆斯特朗犯了语法错误?人类的重大事件总是让人浮想联翩,所以,尼尔和“a”的故事,