皮皮学，免费搜题
登录
搜题
【单选题】
包含p个自变量的回归模型残差平方和为SSE p ,包含p+1个自变量的回归模型残差平方和为SSE p+1,下列说法正确的是A.
SSE p+1 ≤ SSE p
B.
SSE p+1 p
C.
SSE p+1 >SSE p
D.
SSEp ≤ SSEp+1
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
【简答题】——是胚珠着生的部位
【单选题】60岁男患,慢性咳嗽10余年。现有呼吸困难、发绀、发热、血气分析Pa0 2 36mmHg。PaC0 2 72mmHg.有神经精神症状,最合适的诊断是
A.
呼吸衰竭
B.
DIC
C.
代谢性酸中毒
D.
肺性脑病
E.
心力衰竭
【单选题】English is often referred to as a( )language because it uses frequently connectives to indicate the relation between linguistic elements.
A.
paratactic
B.
hypotactic
C.
branching
D.
linear
【简答题】胚珠着生的部位叫
【多选题】There are different types of speech connectives, including __________.A. transitions B. signposts C. internal previews D. internal summaries
A.
There are four types of speech connectives: transitions, signposts, internal previews and internal summaries.
B.
There are four types of speech connectives: transitions, signposts, internal previews and internal summaries.
C.
There are four types of speech connectives: transitions, signposts, internal previews and internal summaries.
D.
There are four types of speech connectives: transitions, signposts, internal previews and internal summaries.
【单选题】患者，男性，60岁，吸烟25余年，每天2包左右，有慢性咳嗽、咳痰病史15余年，近10年来出现逐渐加重的呼吸困难，往往于受寒感冒后症状加重，并出现发热、剧咳、咳黄黏痰、气促、喘息，肺部可闻及干、湿啰音，对该患者进行健康教育时，错误的是
A.
劝其戒烟
B.
冬春季注意保暖，避免受寒
C.
教其做缩唇胸式呼吸
D.
积极预防各种呼吸道疾病
E.
注意环境卫生，加强自我保护，消除有害物质对呼吸道的刺激
相关题目：