【判断题】样本均值是总体均值的一个无偏估计量。 ( )
【简答题】i rabbit.mp4 Why does the man in white shirt decide to throw the Irabbit away? What made him change his mind?
【单选题】why doe the woman want to let her apartment go?
A.
She doesn’t have time to move.
B.
She would have difficulty finding another apartment.
C.
She’s paid her rent for the summer in advance.
D.
She doesn’t want to paint another apartment.
【单选题】—Why not find a new job? —Why should I? I _____________ as much,but I like what I'm doing.
【简答题】i rabbit.mp4 Why does the man in white shirts decide to throw the iRabbit away? What makes him change his mind? (请上传音频回答问题)
【单选题】双子塔是()的标志性建筑,是世界上最高的双子楼和第四高的建筑物。
【单选题】Why doesn' t the woman accept the chocolate?
A.
Because of her stomachache.
B.
Because she doesn' t like it.
C.
Because of her teeth problem.
D.
Because she never eats chocolate before.