细胞损伤发生机理的终末环节是：
A．细胞膜钠钾泵功能失调B．缺氧C．细胞膜的破坏D．细胞浆内高游离钙E．活性氧类物质的强氧化作用
参考答案：D
(2013·高考重庆卷)—Forgotten something？I can keep an eye on your kids if you want to go and get it.
—________Thank you all the same.
A．It’s very kind of you.
B．Oh，how careless of me!
C．I might as well go and get it.
D．Well，I can do without it.
3的平方根是______； 4的算术平方根是______；-27的立方根是______．
