皮皮学，免费搜题
登录
搜题
【单选题】
下列有关半标准货便携式系固设备描述正确的是：（） ①、绑扎带是系固车辆及滚装拖车的专用设备； ②、拖车支架用于支撑并固定拖车； ③、快速释放紧用于收紧并可快速释放系固链条； ④、花篮螺丝用于收紧系固钢丝或系固链条A.
①、②、③
B.
①、②、④
C.
②、③、④
D.
①、③、④
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】A healthcare executive is using regression to predict total revenues. She is deciding whether or not to include both patient length of stay and insurance type in her model. Her first regression model ...
A.
The second model is a better model.
B.
The first model is a better model.
C.
The r2 increased when additional variables were added because these variables significantly contribute to the prediction of total revenues.
D.
The adjusted r2 always increases when additional variables are added to the model.
E.
None of the above statements are true.
【简答题】Length of Stay
【简答题】length of stay
【单选题】C6140A 车床表示床身上最大工件回转直径为( )mm 的卧式车床。C6140A 车床表示经第( )次重大改进的。1140240032004一5二 正确答案是( )
A.
①④
B.
②④
C.
③④
D.
②⑤
相关题目：
参考解析：
知识点：
题目纠错 0
发布
