A:2.70m
B:3.00m
C:3.33m
D:270m
圆的半径扩大3倍,它的面积扩大____倍.
If you have ________new message on it, please call me.
按要求完成下列各小题(1)解方程;4x2﹣36x+3=0;(2)计算:(sin45°)2+2cos60°﹣tan45°.
I hate it when she calls me at work—I'm always too busy to _____ a conversation with her.