One of the guidelines in writing the C code for a software tool is as follows: write code that is as clear and as simple as { A }. The C language can be difficult to read if you combine all { B }features in a single statement. Break complicated { C }into several easy to understand statements for the { D }of readability. This style helps to make your programs more { E } and error-free.

　　供選擇的答案

　　A～E：①readable ②reusable ③Possible ④semantic

　　⑤syntactic ⑥constructions ⑦safe ⑧impossible

　　⑨sake ⑩structure

　　【解析】

　　參考譯文：為軟件工具寫C程序源碼的一個規則如下：寫的程序盡可能清晰、簡單。如果你把所有句法特征組合在單個語句中，C語言將會很難讀。為了提高可讀性應打破復雜結構，將其分為幾個易于理解的語句。這種風格有助于使你的程序更加可讀，而且不出錯誤。

　　【答案】A：③ B：⑤ C：⑥ D：⑨ E：①