你能帮帮他们吗
精彩回答
Every year, about 6.5 million people die because of air ________(pollute).
1年前
lim(x→无穷) (5x-根号(ax^2+bx+2))=2 求a,b
1年前
居天下之广居,_______,行天下之大道;______,不得志独行其道。(《孟子·我善养吾浩然之气》)
1年前
For many years, no one could communicate with people who had been born without hearing.
1年前
古代希腊的政治体制属于城邦民主制,为鼓励和保证全体男性成年公民积极参政,城邦采取的主要举措包括( )
1年前