单项选择题

______ these questions may sound academic, answers to them could have profound economic and political significance.

A．Since
B．Although
C．Unless
D．Lest
<上一题 目录 下一题>
热门 试题

单项选择题
At three thousand feet, wide plains begin to appear, and there is never a moment when some distant mountain is not ______.
A．on view
B．at a glance
C．on the scene
D．in sight
单项选择题
Prof. Lee's book will show you ______ can be used in other contexts.
A．that you have observed
B．that how you have observed
C．how that you have observed
D．how what you have observed
相关试题