1. C语言的主要特点有哪些?(多选) A.简洁、紧凑，使用方便、灵活，易于学习和应用。 B.Ｃ语言是面向结构化程序设计的语言。 C.Ｃ语言允许直接对位、字节和地址进行操作。 D.数据类型丰富。 E.Ｃ语言生成的目标代码质量高。 答案: ABCDE-1. C language are the main features of which (choose) A. concise, compact, easy to use, flexible, easy to learn and use. Untreated language for structured programming language. C.C allow direct language right place, byte address and operate. D. rich data types. E.C language production of high-quality object code. Answer : segments