两样本均数比较的假设检验，按α= 0.05水准，认为差异无显著性，此时若推断有错，其

下述下颌息止位生理意义不正确的是 （）

A.避免牙的牙合面非功能性磨损

B.避免咀嚼肌疲劳

C.避免牙合创伤

D.利于发音

E.使牙周组织得到休息

小题1:They will have an English exam in a week .（就划线部分提问）

______ ______ _____ they have an English exam?

小题2:I was having lunch when the UFO landed.（变一般疑问句）

______ _______ ______ lunch when the UFO landed?

小题3:The boy was walking down the street when the UFO landed（改为同义句）

______the boy was walking down the street, the UFO______.

小题4:He goes to school on foot every day .（同义句）

He ______ _______ school every day.

小题5:It took Tom an hour to write to his friend. （同义句）

Tom ______ an hour ______ to his friend.

冒充军警人员招摇撞骗的，从重处罚。 ( )

知识可以直接转化为信息，所以知识就是信息。