单项选择题

A．450 million.
B．400 million.
C．550 million.
D．470 million.
<上一题 目录 下一题>
热门 试题

单项选择题
You should ______so as to minimize the effects of computer disasters.
A．take steps to recover from them
B．call the computer company
C．buy insurance
D．stow away provision
问答题
目前食品安全的状况2.产生这些食品质量问题的原因3.我们应该怎么做 The Safety of Food__________________________________________________________________________________________________________________________________________________________________________________________
相关试题