在 * * 中被迫害致死的国家 * * 是[ ]
A.彭德怀
B.刘 * *
C.贺龙
D.徐海东
答案:B
We don’t have to go far if we want ______ with our work.
A.to help
B.helps
C.helping
D.help
解方程:
(1)x2-4x+2=0
(2)x(x-2)+x-2=0
(3)(x-1)(x-3)=8
(4)x(2x+3)=4x+6.