Which of the following best expresses the main idea of the passage
选项:
A:It is optical fibers and lasers that have made the information superhighway possible.
B:People can communicate with each other more quickly now on the Internet.
C:It has taken quite a long time for the Intern to come into existence.
D:If one is seriously ill, he can always get help via the modem communication system.
发布时间:2024-05-19 20:10:07