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Fill in the blanks with the following words. while; from; first; continue; favorite; have; important; study; day by day; Actually; as; meeting; value; always; that; to; growing; which; excellent; to prepare for I have always liked going to school. I enjoy learning new things and (1) __________ new people there. I try to consider my school work (2) __________ a challenge instead of an unpleasant duty. My parents have taught me the (3) __________ of a good education and importance of (4)__________ doing my best. My father says that school is “ the cradle (摇篮) of education ” . I think (5) __________ is true. A student beginning school can be compared (6)__________ a baby who is put into a cradle, where it begins(7)__________. In school, the student begins his education,(8)__________ will continue as long as he lives. My school is not very large, but I think it is (9) __________. This year I’m studying maths, English, Chinese, science, history and geography (10) __________ college. My teachers are very strict. We (11) __________ hard in class and always have homework. I’m learning more and more (12) __________. My best grades are in English and science. (13)__________, my English teacher is encouraging me to (14) __________ my English studies after high school. She is my best and (15) __________ teacher. She always has the time and patience to help me when I have questions. I (16) __________ great respect for her. I believe a good education is one of the most (17) __________ things a person can have. Although I take part in many social activities, my school work always comes (18)__________. and if a student has a positive ( 积极的 ) attitude about school, he will enjoy it more and learn more(19)__________ it. In the years to come he will be glad that he studied hard (20)__________ in “the cradle of education”.
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【单选题】王女士,卧床4周。护士仔细观察皮肤后,认为是压疮的淤血红润期,其典型表现是
A.
受压皮肤呈紫红色
B.
局部皮肤出现红肿热痛
C.
局部皮下产生硬结
D.
皮肤出现大小不等水泡
E.
创面有黄色渗出液
【简答题】(vt.)carefully plan the way you're going to ask a question, make a statement, etc. (小心措辞以)表达 (c.n.) a structure made of wood, metal, plastic, etc. that surrounds sth. such as a picture or window, and ...
【单选题】多重线性回归分析中的共线性是指
A.
自变量间有较高的相关性
B.
Y关于各个自变量的回归系数相同
C.
Y关于各个自变量的回归系数与截距都相同
D.
Y变量与各个自变量的相关系数相同
【简答题】(小心措辞以)表达,框架,边框
【简答题】框架,边框;(小心措辞以)biaodaq
【多选题】线性回归分析中()。
A.
自变量和因变量都是随机变量
B.
利用一个回归方程,可以对因变量做出预测
C.
根据回归系数可判定相关的方向
D.
无明显因果关系的两相关变量可求得两个回归方程
【简答题】在线性回归分析中,只涉及一个自变量的回归称为();涉及多个自变量的回归称为()。
【简答题】什么叫逐步回归?什么是最优多元回归方程?在多元线性回归分析中,应用逐步回归方法建立多元线性回归最优方程有哪两种方法?如何剔除不显著的自变量?
【多选题】在一元线性回归分析中( )
A.
回归方程是根据最小二乘法法确定的
B.
判定系数测度了回归方程的拟合程度
C.
估计标准误差测度了观测值与估计值之间的平均变异程度
D.
用F统计量检验线性关系
E.
用t统计量检验回归系数的显著性
【判断题】在多元线性回归分析中,b的t检验和模型整体的F检验二者取其一即可,但是在一元回归分析中,它们是不等价的:t检验只是检验回归模型中各个系数(参数)的显著性,而F检验则是检验整个回归关系的显著性。( )
A.
正确
B.
错误
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