Passage OneQuestions 16 to 18 are based on the passage you have just heard.
A. Man alters his environment while he is adapted.
B. Man is only adapted to the environment but he doesn’t alter it.
C. Other living things change their environment while man does not.
D. Other living things is not only adapted to their environment but also alters it.
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In information theory, "information" is regarded as knowledge which reduces or removes (71) about the occurrence of a specific event from a given set of possible events. The concept "event" is to be understood as used in the theory of probability. For instance, an event may be the occurrence of a (72) character or word in a given message or in a given position of a message.In communication theory, channel is defined as that part of a communication system that connects the message source with the message sink. An encoder may be inserted between the message source and the input to the channel, and a (73) between the output of the channel and the message sink. Generally, these two units are not considered as being parts of the channel. In certain cases, however, they may be considered as pans of the message source and message sink, (74) . In information theory (75) to Shannon, the channel can be characterized by the set of conditional probabilities of occurrence of all the messages received at the message sink when a given message emanates from the message source. (74)处填()。
A. separately
B. respectively
C. individually
D. distributed
Questions 1 to 8 are based on the conversation you have just heard.
A. He forgot to take the interview.
B. He hopes that he will do better during the interview.
C. It will be hard for him to forget about the interview.
D. The interview was very pleasant.
已知文法G[S]:S→A0|B1,A→S1|1,B→S0|0,该文法属于乔姆斯基定义的 (18) 文法,它不能产生串 (19) 。语言L=ambn|m≥0,n≥1)的正规表达式是 (20) 。一个文法G=(N,T,P,S),其中N是非终结符号的集合,T是终结符号的集合,P是产生式集合,S是开始符号,令集合V=N∪T,那么G所描述的语言是 (21) 的集合。程序设计语言引入“类”的概念是为了解决数据保护问题。C++语言将类的成员封装在类体之中,使之具有一定的存取规则,这些规则规定了存取类的成员的权利,其中对于用Private说明的成员,它 (22) 。 (19)处填()。
A. 0011
B. 1010
C. 1001
D. 0101
UML的词汇表包含3种构造块,但不包括下面的 (52) ;UML中有 4种事物,但不包括下面的 (53) ;UML中有4种关系,但不包括下面的 (54) 。 (53)处填()。
A. 分组事物
B. 结构事物
C. 消息事物
D. 行为事物