A:allow ;give it up
B:allowed ;give it up
C:allowed ;give up it
在一幅比例尺为1∶1000000的地图上,量得两地图上距离为2cm,两地实地距离为( )
—Let's go on a picnic this weekend, OK?
—That sounds .
若n为正整数,且x2n=3,则(3x3n)2的值为____.