单项选择题

A．However
B．But
C．And
D．Therefore
<上一题 目录 下一题>
热门 试题

单项选择题
A．AsB．DueC．PriorD．Next
A．As
B．Due
C．Prior
D．Next
单项选择题
For what purpose does the pilot shut off all the engines
A．To find out exactly what happens.
B．To save fuel.
C．To fly more slowly.
D．To keep balance.
相关试题