单项选择题

Cement was seldom used in building in the Middle Ages.

A．crudely
B．rarely
C．originally
D．occasionally
<上一题 目录 下一题>
热门 试题

单项选择题
Nerve signals may travel through nerve or muscle fibers at speeds as high as two hundred miles per hour.
A．rates
B．impacts
C．ratios
D．pulses
单项选择题
The movie has a satisfying ending.
A．pleasing
B．sad
C．interesting
D．horrific
相关试题