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【多选题】
浏览任务单,回顾基础任务的求解流程,归纳用一元回归分析建立回归方程的主要步骤 。( )A.
搜取样本数据资料
B.
确定自变量和应变量，绘制散点图
C.
观察散点图，描述变量间的变化趋势
D.
选择回归模型拟合，得到样本数据的回归方程和回归曲线
E.
检验回归方程
F.
分析残差，优化模型
G.
根据实际情况，解释模型，为预测和控制相应变量提供依据。
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举一反三
【单选题】下面哪些原因不会造成复位电路故障 ____________
A.
复位开关 (RESET开关)无高电平
B.
无时钟信号
C.
南桥或北桥坏
D.
复位芯片损坏
E.
供电电压过低
【简答题】inhale
【单选题】The staff who work in public places would favor the ban because
A.
they don't have to inhale foul air.
B.
they don't have to serve smokers.
C.
they will get more tips from non-smokers.
D.
there will be a rise on their salaries.
【单选题】下面哪些原因不会造成复位电路故障 ____________
A.
复位开关 (RESET开关)无高电平
B.
无时钟信号
C.
南桥或北桥坏
D.
复位芯片损
E.
供电电压过低
【单选题】There is a philosophical question as to whether people should have to inhale others' smoke.
A.
a finding of the UCSF study
B.
an opinion of the UCSF study
C.
a finding of the EPA report
D.
an assumption of consultants to the tobacco industry
【单选题】The staff who work in public places would favor the ban because
A.
they don't have to inhale foul air.
B.
they don't have to serve smokers.
C.
they will get more tip from non-smokers.
D.
there will be a rise on their salaries.
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