单项选择题

Why must air be pumped into the plane

A．The plane can’t fly without air.
B．The plane needs air for its refueling.
C．It meets the passengers’ needs.
D．It meets the pilots’ needs.
<上一题 目录 下一题>
热门 试题

单项选择题
What is the difference between MySpace and other websites
A．It allows one to show his personal information.
B．It offers only the children’s personal information.
C．It is against parents’ will to educate the kids.
D．It only offers stories about other people.
单项选择题
Which of the following is described as a Photoshop for the human voice
A．Vocal cords.
B．Hip-hop singers.
C．Motown.
D．Auto-Tune.
相关试题