C write these sentences again changing the form of the words in italics . omit any words that are not necessary 改变以下句子中用斜体印出的词组，可以省略不必要的词语。
Rewrite the following sentences using the joining words in parentheses . where necessary omit the words in italics 用括号中的连词改写以下句子，必要时可以省略用斜体印出的词。
Can i omit the preamble of the gpl , or the instructions for how to use it on your own programs , to save space 我可以省略gpl的导言或者如何在你的程序中使用它的指令来节省空间吗？
The code saved will be substantial especially when you consider a try finally block needed in each method 可以省略的代码非常多（特别是当考虑每个方法所需要的try / finally块时） 。
For the machine with no external card reader or no need to online communicate , its relative steps can be ignore 对于没有外置打卡头或不需要联机通讯的机型，可以省略相应的安装过程。
P for the machine with no external card reader or no need to online communicate , its relative steps can be ignore 对于没有外置打卡头或不需要联机通讯的机型，可以省略相应的安装过程。
If the index is re - created by using the same name , columns and sort order , the sort operation may be omitted * *如果通过使用相同的名称、列和排序顺序重新创建索引，则可以省略排序操作。
Any one of the optional clauses can be omitted , but when the optional clauses are used , they must appear in the appropriate order 可以省略可选子句，但这些子句在使用时必须按适当的顺序出现。
Some commonly used attributes are listed as follows , their names appearing without the attribute suffix , which can be omitted 下面列出了一些常用的属性，属性名没有attribute后缀，该后缀可以省略：
If you are logged on with a user account that is trusted on the server that is running sql server express , you can omit the 如果使用运行sql server express的服务器中受信任的用户帐户进行登录，则可以省略
