随机误差项iu和残差项ie是一回事。
参考答案：错
向HCl和FeCl3的混合溶液中，不断加入NaOH溶液，下图曲线正确的是[ ]
A．
B．
C．
D．
---- Does your wife like tea?
---- Well, she doesn’t really ____ tea; she likes coffee better.
A．care for
B．care
C．care about
D．care of
