(53)
- A．信道上的直流信号与模拟信号
- B．信道上的频率范围较宽的交流信号
- C．信道上基带信号经过调制后的信号
- D．信道上传输的所有信号
-
(82)
- A．same
- B．different
- C．difference
- D．some
-
(81)
- A．two related keys are
- B．a key is
- C．two unrelated keys are
- D．three keys are
-
(80)
- A．synchronous
- B．Asynchronous
- C．symmetric
- D．asymmetric
-
(79)
- A．a key
- B．two keys
- C．three keys
- D．four keys
-
(77)
- A．in general
- B．in any term
- C．in set terms
- D．in terms of
-
In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet. There are two types of key technology: private key and public key. Private-key encryption methods are called(71)ciphers, information is encrypted with(72)both the sender and receiver hold privately. Public-key encryption methods are called(73)ciphers,(74)created for each user, encryption key and decryption key are(75)
- A．synchronous
- B．Asynchronous
- C．symmetric
- D．asymmetric
-
(76)
- A．faced on
- B．faced with
- C．faced about
- D．faced up to
-
(75)
- A．consolidates
- B．consists
- C．considerate
- D．consoles
-
(74)
- A．same
- B．similar
- C．different
- D．difference
-
In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet. Heterogeneous network environments consist of computer systems from(66)vendors that run(67)operating systems and communication protocols. An organization that(68)its computer resources is usually(69)the task of integrating its heterogeneous systems. Typically, each deparlment or division has defined its own network needs(70)OS, LAN topology, communication protocols, applications, and other components.
- A．same
- B．similar
- C．different
- D．difference
高级经济师考试试题精选练习（1）
高级经济师考试模拟练习题之单选题（1
高级经济师考试试题精选练习（2）
高级经济师考试试题精选练习（3）
高级经济师考试试题：经济法案例试题精
高级经济师考试模拟试题及答案
高级经济师考试试题及答案：单选练习题
高级经济师考试试题：经济法案例试题精
高级经济师考试模拟题及答案练习(1)
高级经济师考试模拟题及答案练习(2)