单项选择题

A．The first group.
B．The second group.
C．The last group.
D．All the three groups.
<上一题 目录 下一题>
热门 试题

单项选择题
A．Artificial hearts.B．Telescopes.C．Microscopes.D．Radio telescopes.
A．Artificial hearts.
B．Telescopes.
C．Microscopes.
D．Radio telescopes.
单项选择题
A．Secretary-Boss.B．Client-Lawyer.C．Student-Teacher.D．Patient-Nurs
A．Secretary-Boss.
B．Client-Lawyer.
C．Student-Teacher.
D．Patient-Nurs
相关试题