分解因式：x2+4x+4=______．
x2+4x+4=（x+2）2．
故答案为：（x+2）2．
These films ______ until tomorrow morning.
A．can't develop
B．aren't developing
C．won't be developed
D．won't develop
写出如下命令语句：
在MS－DOS环境下，对D盘进行快速格式化：(1分)
