皮皮学，免费搜题
登录
搜题
【单选题】
如果一个随机变量是由大量相互独立的随机因素的影响所造成的,而每个因素的作用又是相当微小的,那么这一随机变量是趋于()分布的A.
负态
B.
正态
C.
常态
D.
远态
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】原文: On most measures, the children of married couples are already more likely to fare better than those with single parents.
A.
从大多数方面来看，婚生子女比那些有单亲父母的孩子更有可能获得成功。
B.
从大多数方面来看，婚生子女比与单亲父母生活的孩子更有可能获得成功。
C.
从大多数方面来看，父母已经婚的子女比与单亲父母生活的孩子更有可能获得成功。
D.
从大多数方面来看，婚生子女比单亲父母生的孩子更有可能获得成功。
【简答题】如果循环次数在执行循环体之前就已确定,一般用____循环;如果循环次数由循环体的执行情况确定后,一般用____循环或者____循环。
【单选题】Like most married couples we've had our ( ), but life's like that.
A.
fortunes and misfortunes
B.
sound and safe
C.
scrimp and save
D.
ups and downs
【简答题】Most married couples in China are subjected to 1. ______________ , which is introduced in 1979 to curb 2. ______________ population growth. It is believed to have pred 3. ______________ births si...
【简答题】如果循环次数在执行循环体之前就已确定,一般用______循环; 如果循环次数是由
【单选题】若f=a*x^2+b*x+c是一个符号表达式,则symvar(f)的值是( )
A.
[a,b,c,x]
B.
[x,c,b,a]
C.
[x,a,b,c]
D.
[c,b,a,x]
【单选题】Like most married couples we ’ ve had our _______ , but life is always like that.
A.
determination
B.
sense
C.
ups and downs
D.
remark s
【单选题】下列符合西周时期社会经济现象的是( ) 1大量使用青铜农具2出现刺绣品3建立了邮驿传递制度4以贝作为货币 5用漆工艺装饰车
A.
①②③④
B.
②③④⑤
C.
②③⑤
D.
①③⑤
【单选题】Like most married couples we've had our , but life's like that.
A.
ups and downs
B.
up and down
C.
up and downs
D.
ups and down
相关题目：