单项选择题

In this way these insects show an efficient use of their (sound-produced) ability, (organizing) two sounds (delivered) at a high rate as one (call).

A．sound-produced
B．organizing
C．delivered
D．call
<上一题 目录 下一题>
热门 试题

单项选择题
I thought the technician was (to blame) for the (blowing) of the fuse, but I see now (how) I (was) mistaken.
A．to blame
B．blowing
C．how
D．was
单项选择题
He has failed me so many times that I no longer place any ____________ on what he promises.
A．faith
B．belief
C．credit
D．reliance
相关试题