以下关于参数估计的说法正确的是（）。

A.区间估计优于点估计

B.样本含量越大，参数估计准确的可能性越大

C.样本含量越大，参数估计越精确

D.对于一个参数只能有一个估计值

E.以上均不正确

He said _________________________________________.

A．that the earth goes around the sun .

B．that the sun goes around the earth .

C．that the sun went around the earth .

D．that the earth went around the sun .