皮皮学，免费搜题
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搜题
【单选题】
用均数与标准差可全面描述其资料分布特点的是A.
正偏态分布
B.
负偏态分布
C.
偏态分布
D.
正态分布和近似正态分布
E.
任何分布
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】Choose the correct sentence.
A.
You like English. How come?
B.
How come you like English?
C.
Why do you like English?
D.
All of the above answers are correct.
【单选题】Question 35 Choose the correct letter A-D. The noise levels at the site can reach
A.
45 decibels.
B.
55 decibels.
C.
67 decibels.
D.
70 decibels.
【判断题】渗碳钢的合金调质钢的含碳量一般<0.25%。< /div>
A.
正确
B.
错误
【单选题】•Read the passage about the job of store assistants. •Choose the correct word A, B, C or D from below the passage to fill each gap. •For each question (19-33) , mark one letter (A, B, C or D) on your ...
A.
stored
B.
provided
C.
stocked
D.
packed
【简答题】choose the correct answer for the sentences in column A
【单选题】choose the correct answer
A.
The Export department.
B.
The Planning department.
C.
The Publicity department.
D.
The Import department.
【简答题】什么叫渗碳钢？为什么一般渗碳用钢的含碳量都比较低？合金渗碳钢常含有哪些元素？它们对钢的组织与性能有何影响？
【单选题】Complete the diagram below. Choose the correct letter A-E from the box below. Write your answers in boxes 19-23 on your answer sheet.
A.
Gliese581c
B.
Gliese581d
C.
Gliese581e
D.
Gliese 581g
E.
Earth (19)
相关题目：
【判断题】渗碳钢的合金调质钢的含碳量一般<0.25%。< /div>
A.
正确
B.
错误