在抽样研究中，由于抽样而产生的样本指标与总体指标之间的误差，称为（）。

A.系统误差

B.抽样误差

C.随机误差

D.过失误差

E.样本误差

短文改错

     This autumn my class went to Dalian to go the camping. We arrived at a sandy beach

with a well view of the sea. We set up our tents on the sandy beach, when night fell we

made a fire to give us light and kept us warm. All the classmates sat around them, talking

and laughing. Several hours late, Li Mei and I went back to the tent to have a chat. We

stayed up all of night. We found that we two had a lot of common. For instance, we both

like the same singers and have great enthusiasm for physics. The fire and the stars see our

happiness. What I wished time would stop at that moment!

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