On Monday moring, while the sun was ____ in the east, we watched the national flag ____ to the top of the pole. A. raising; raise B. rising; being raised C. raising; rise D. rising; being ri
Mum, could you buy me a dress like this? --- Certainly, we can buy _____than this, but _______this. A. a better, better than B. a worse, as good as C. a cheaper, as go
(2007年普通高等学校夏季招生考试英语（全国Ⅰ）)C Our “Mommy and Me” time began two years ago. My next-door neighbor and fellow mother, Christie, and I were out in our front yard
=1,则xy有( )
,解得xy≥144.当且仅当x=8,y=18时取等号.选C.