When you are learning English, you find it not clever to put an English sentence, word for word, into your own language. Take the sentence “How do you do?” as an example. If you look up each wor
Beijing government puts more than 700 million yuan to increase its green space this year; ____________ doubles the money provided last year. A. as B. while
=1,则xy有( )
,解得xy≥144.当且仅当x=8,y=18时取等号.选C.