单项选择题

Which of the following does this passage mainly discuss

A．The application of bionics.
B．The first "open heart" surgery.
C．The development of the artificial heart.
D．The future of applied bionics.
<上一题 目录 下一题>
热门 试题

单项选择题
The best title for this text would be______.
A．Punctual Like a Clock
B．A Cold Welcome
C．An Unpunctual Manager
D．Better Late Than Never
单项选择题
Marie could hardly recognize the office she went into as______.
A．she had been there only once
B．Mr. Smith was not in the office
C．nobody was doing any work
D．the office had a new appearance
相关试题