Her question was so difficult that I could hardly make any ____ of it at all.

A．explanation

B．meaning 　

C．sense　　　

D．idea

( ) 对于 游轮 相当于 ( ) 对于 公交车

A．帆船——自行车
B．汽油——柴油
C．皮划艇——摩托车
D．船员——乘客