单项选择题

A．institutional
B．universal
C．fundamental
D．instrumental
<上一题 目录 下一题>
热门 试题

单项选择题
Why can’t people on earth be harmed by radiation
A．We are too far away from any harm.
B．We can protect ourselves.
C．There is part of the atmosphere protecting us.
D．There is special layers on our skin.
填空题
On what day of the week do you think this weather forecast was given
相关试题