单项选择题
Calculations, which are astronomically exact, have been made ______ with the use of computers.
A．possible
B．it possible
C．possibly
D．to be possible
点击查看答案&解析
<上一题
目录
下一题>
热门
试题
单项选择题
A beam of light will not bend round the corners unless ______ to do so with the help of a reflecting device.
A．being done
B．made
C．to be made
D．having made
点击查看答案&解析
单项选择题
A robot can be used to expand our frontiers when ______.
A．its intelligence and cost are beyond question
B．it is able to bear the rough environment
C．it is made as complex as the human brain
D．its architecture is different from that of the present ones
点击查看答案&解析
相关试题
80（）
79（）
77（）
76（）
71（）