当x=2与x=-2时，代数式x4-2x2+3的两个值[ ]
A.相等
B.互为倒数
C.互为相反数
D.既不相等也不互为相反数
答案：A
As a child，Jack studied in a village school，______ is named after his grandfather．[ ]
A．which
B．where
C．what
D．that
土鳖虫除破血逐瘀外，还能（）
A.利湿退黄
B.通经下乳
C.续筋接骨
D.生肌敛疮
E.解蛇虫毒
