单项选择题

______ the invention of the steam engine, most forms of transport were horse-drawn.

A．In regard to
B．Prior to
C．In addition to
D．In contrast with

<上一题目录下一题>

热门试题

单项选择题He would never forget the hardships he witnessed during the Great ______ of the 1930s.

单项选择题Which of the italicized parts indicates UNCERTAINTY