皮皮学,免费搜题
登录
搜题
【判断题】
织女住在天河的西边。
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
【多选题】计算相关系数时(    )
A.
相关的两个变量都是随机的
B.
相关的两个变量是对等关系
C.
相关的两个变量,一个是随机的,一个是对等的
D.
可以计算出自变量和因变量两个相关系数
E.
相关系数有正负号
【多选题】计算相关系数时
A.
相关的两个变量都是随机的
B.
相关的两个变量是对等的关系
C.
相关的两个变量一个是随机的,一个是可控制的量
D.
相关系数有正负号,可判断相关的方向
E.
可以计算出自变量和因变量两个相关系数
【单选题】According to the author, what is the first impression of the various ruins?
A.
They formed part of the capital of a new Mayan kingdom.
B.
They were what remained of a temple to sky gods.
C.
They were what was left of the new territory.
D.
They were what remained of the farthest city.
【简答题】阅读材料,回答问题。(8分) 材料一 千锤万凿出深山,烈火焚烧若等闲。粉身碎骨浑不怕,要留清白在人间。 材料二 如图为某彩石爱好者在攀枝花市金沙江畔购买的一块模树石,购买时卖家说“……这块石头出自形成于4亿年前的远古时代的沉积岩形成的板岩中,上面这些树枝状的黑色物体是古代植物的化石……” (1)诗中所述岩石是 ,按成因属于 岩。 (2)这种岩石中能否找到生物化石? (3)这种岩石经变质作用后,形成...
【单选题】What caused the explosion according to the news?
A.
The stored fireworks started to fire automatically.
B.
The fireworks were fired by a terrorist at the temple.
C.
Some of the fireworks fell on a building with a lot of stored fireworks.
D.
The people gathering at the temple set fire for religious celebration.
【单选题】当相关系数时,表明( )。
A.
现象之间完全无关
B.
相关程度较小
C.
现象之间完全相关
D.
无直线相关关系
【单选题】What suggestion is made about the former purpose of the various ruins he could see?
A.
they had formed part of the capital of a new Mayan kingdom.
B.
They were what remained of a temple to sky gods.
C.
They Were what was left of the starting point from which the Mayans had moved to new territory.
D.
They were what remained of the farthest city reached in a large-scale Mayan migration.
【单选题】在采用回归分析法计算相关系数时,相关系数越接近于1,说明X与Y之间的相关程度越(    )。
A.
大    
B.
无关    
C.
小    
D.
负向相关
【单选题】What did the government official say about the explosion?
A.
The fireworks should be strictly supervised at the temple.
B.
The fireworks display had not been permitted to be held.
C.
The fireworks were displayed in a wrong way.
D.
Any fireworks display should be forbidden in the future.
【单选题】What suggestion is made about the former purpose of the various ruins he could see?
A.
they had formed part of the capital of a new Mayan kingdom.
B.
They were what remained of a temple to sky gods.
C.
They were what was left of the starting point from which the Mayans had moved to new territory.
D.
They were what remained of the farthest city reached in a large-scale Mayan migration.
相关题目: