单项选择题

The first two paragraphs tell us a true story of ______.

A．international cooperation via the Internet
B．how dangerous thallium can be to humans
C．how one can get help from the Internet
D．the girl's recovery from thallium poisoning

<上一题目录下一题>

热门试题

单项选择题

The highly efficient modem communication system began ______.

A．over a century ago
B．in the middle 1960s
C．in the late 1980s
D．in the year 1980

单项选择题

Which of the following best expresses the main idea of the passage

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.