分解因式:x2y-4xy+4y.
x2y-4xy+4y,
=y(x2-4x+4),
=y(x-2)2.
I’ve heard_____said that Princess Harly was put into prison because of illegal behavior .
A.it
B.him
C.what
D.that
The way ______ was thought of by him ______ the experiment was similar to the way _____ you carried it out.
A. that, doing, which B. which, of doing, in which
C. what, to do, \ D. it, of doing, that