单项选择题

Very few scientists ______ completely new answers to the world's problems.

A．come up with
B．come out
C．come round
D．come up to
<上一题 目录 下一题>
热门 试题

单项选择题
It's time for me to see ______ dinner.
A．out
B．over
C．about
D．off
单项选择题
______ the advances of scientific forecasting, in spite of the thousands of daily bulletins and advisories that get flashed about, the weather is still ultimately capricious and unpredictable.
A．For all
B．But for
C．As for
D．As to
相关试题