皮皮学，免费搜题
登录
搜题
【判断题】
之所以要对回归模型作以统计检验,是因为根据一次抽样数据计算出的参数估计值与总体参数真值很可能存有偏差。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The soldier found himself ______ of a hero when he returned to his village.
A.
somebody
B.
something
C.
anybody
D.
anything
【单选题】孕妇小张,孕龄 24 周,生活正常,无不适症状。社区护士家访时交代其做产前检 查,此项内容属于哪一级疾病预防
A.
一级预防
B.
病因预防
C.
二级预防
D.
临床期预防
E.
病残预陟
【简答题】Charity is a concept which dates back to Biblical times, when helping the poor was something that rich people basically did to make themselves feel good. Social work has its roots in charity, as it or...
【简答题】完形填空 In 1982, Steven Callahan was crossing the Atlantic alone in his sailboat when it struck something and sank. He got into a lifeboat, but his supplies were __ 1__ . His chances of surviving were sm...
【简答题】完形填空 In 1982, Steven Callahan was crossing the Atlantic alone in his sailboat when it struck something and sank. He got into a life boat, but his supplies were 1 . His chances of surviving were small....
相关题目：
【单选题】孕妇小张,孕龄 24 周,生活正常,无不适症状。社区护士家访时交代其做产前检 查,此项内容属于哪一级疾病预防
A.
一级预防
B.
病因预防
C.
二级预防
D.
临床期预防
E.
病残预陟