A:by
B:for
C:with
D:in
下列从左到右的变形,是因式分解的是( )
选项
X
Y
Z
M
A
FeS2
SO2
SO3
O2
B
NaOH
Na2CO3
NaHCO3
CO2
C
Cl2
FeCl3
FeCl2
Fe
D
AlO2﹣
Al(OH)3
Al3+
( )
辽、宋、夏、金时期的政治特点是( )
— Would you like to come to my birthday party?
— Oh, thank you. I'd _________.