皮皮学,免费搜题
登录
搜题
【单选题】
若随机变量X的概率密度函数为 ,则记作X~
A.
N(1,4)
B.
N(-1,4)
C.
N(1,2)
D.
N(-1,2)
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
【单选题】I have (never) (heard) so wonderful (piece) of music (before).
A.
never
B.
heard
C.
piece
D.
before
【判断题】双击 Word2003的标题栏可以在最大化和非最大化之间切换。
A.
正确
B.
错误
【多选题】下列有关Word2010的说法,正确的是()
A.
Word2010中,文档的页码只能从1开始
B.
使用剪切、粘贴命令后,剪贴板内剪切的内容将会消失
C.
双击Word2010的标题栏可以在非最大化和最大化之间切换
D.
可以将Word2010文档保存为纯文本类型和网页类型
【判断题】双击 Word 2010 的标题栏可以在最大化和非最大化之间切换。
A.
正确
B.
错误
【单选题】The teacher gave me one of the best ______ I had ever heard,
A.
piece of advice
B.
pieces of advices
C.
piece of advices
D.
pieces of advice
【单选题】听力原文:M: I suppose you must have heard about that great piece of concrete falling onto a car in that terrible accident in South Street yesterday, didn't you, Jane? W: Yes, I saw it in the paper. From a...
A.
There was a traffic accident.
B.
A car was smashed by a falling object.
C.
A car hit someone near the high building.
D.
A driver was killed in his new car.
【单选题】听力原文:M: I suppose you must have heard about that great piece of concrete falling onto a car in that terrible accident on South Street yesterday (19), didn't you, Jane? W: Yes, I saw it in the paper. F...
A.
A man was killed by a car.
B.
A car was smashed by a falling object.
C.
Another car hit and smashed the man's car.
D.
A piece of wood blocked the street.
【多选题】下列有关 Word 2010 的说法,正确的是 ________ 。
A.
可以将Word 2010文档保存为纯文本类型或网页类型
B.
双击Word 2010的标题栏可以在最大化和非最大化之间切换
C.
命令前带有“ ü ”,表明该命令是个单选命令
D.
Word 2010 中,文档的页码只能从 1 开始
【判断题】卡罗拉内饰颜色除黑色外现款车型象牙色变为稍浅的亚麻色手套箱、门板以及地板为黑色
A.
正确
B.
错误
【单选题】听力原文:M: I suppose you must have heard about that great piece of concrete falling onto a car in that terrible accident in South Street yesterday, didn't you, Jane? W: Yes, I saw it in the paper. From a...
A.
There was a traffic accident.
B.
A car was smashed by a falling object.
C.
A car hit someone near the high building.
D.
A driver was killed in his new car.
相关题目: