试判断下列矩阵A, B是否相似。若相似,求出可逆矩阵M,使得B=。
试判断下列矩阵A, B是否相似。若相似,求出可逆矩阵M,使得B=。
试判断下列矩阵A, B是否相似。若相似,求出可逆矩阵M,使得B=。
B.Am~Λm(m为正整数)
C.若A可逆,则A-1~Λ-1
D.若A可逆,购A~E
(1)能否用安培环路定理求P点的B?为什么?
(2)能否用安培环路定理求P点的Bt?为什么?
B. By effect
C. At effect
D. In effect
Body language sends ideas or thoughts by certain actions, either meaningfully or not. A wink can be a way of showing that the party is only joking. A nod means agreement, while shaking the head indicates disagreement.
Other forms of nonlinguistic language can be found in Braille (盲人用点字法a system of raised dots read with the fingertips), signal flags, Morse code, and smoke signals. Road maps and picture signs also guide and warn people. While language is the most common form. of communication, other systems and techniques also express human thoughts and feelings.
Which of the following statements best summarizes this passage?
A. When language is a barrier, people will find other forms of communication.
B. Everybody uses only one form. of communication.
C. Nonlinguistic language is invaluable to foreigners.
D. Although other forms, except for language, of communication exist, they are of little value.
Which of the following statements in NOT true?
A. There are many forms communication in use today.
B. Ideas and thoughts can be expressed by body language.
C. Tourists are unable to use an oral form. of communication.
D. Language is the most common form. of communication.
Which form. other than oral speech could be most commonly used among blind people?
A. Picture signs.
B. Signal flags.
C. Body language.
D. Braille.
Sign language is said to be very lively and exact and can be used meaningfully except for?
A. spelling
B. expressions
C. whole words
D. idea
How many different forms of communication are mentioned here?
A.5.
B.3.
C.9.
D.7.
为了保护您的账号安全,请在“简答题”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!