【单选题】【消耗次数：1】
The organization has developed several techniques useful to other groups ____ the similar work.
①
to do
②
do
③
does
④
doing
参考答案：
复制
纠错
相关题目
【单选题】
If they ___ to do this work, he might do it some other way.
①
were
②
should
③
will
④
can
【单选题】
If they______to do this work,he might do it some other way.
①
were
②
should
③
will
④
can
【单选题】
1. If they ______ to do this work, he might do it some other way.
①
were
②
should
③
will
④
can
【判断题】
As an individual branch of linguistics, lexicology has nothing to do with other branches of linguistics.
①
正确
②
错误
【单选题】
What role does a teacher play in the following activity? When students are doing a group-work task, the teacher joins one or two groups for a short period of time.
①
Controller
②
Assessor
③
participant
④
Resource-provider.
随机题目
【简答题】
设计优化必须先设定各项质量指标的[填空]。
【判断题】
<img class=jc-formula data-tex=[a,b] src=https://huaweicloudobs.ahjxjy.cn/FD8E0CF6A23EB9F286867CA0682E241E.png style=vertical-align: middle;/>上均匀分布的随机变量的密度函数为：<img class=jc-formula data-tex=f(x)=\left\{ \begin{ matrix } \frac { 1 }{ b-a } , \\ 0,其他. \end{ matrix }ab, \right src=https://huaweicloudobs.ahjxjy.cn/B7CBD1A6DB3097F2C5CEF450ADEB42F8.png style=vertical-align: middle;/>
①
正确
②
错误
【判断题】
设随机变量<img class=jc-formula data-tex=X src=https://huaweicloudobs.ahjxjy.cn/18E2773B1E2835B209E7E51B85285E80.png style=vertical-align: middle;/>的分布函数为<img class=jc-formula data-tex=F(x)=\left\{ \begin{ matrix } 0,x-1, \\ 0.25,-1\le x0, \\ 0.75,0\le x1, \\ 1,x\ge 1. \end{ matrix } \right src=https://huaweicloudobs.ahjxjy.cn/61DE4231EC61E9C0F5281E2E177A9FB5.png style=vertical-align: middle;/>,则<img class=jc-formula data-tex=P(0\le X\le 1)=0.75. src=https://huaweicloudobs.ahjxjy.cn/4FB17B152B1E5089B0E0C9C339086583.png style=vertical-align: middle;/>
①
正确
②
错误
【简答题】
第三代语言也称为[填空]语言。
【判断题】
<img class=jc-formula data-tex=若X\sim N(\mu ,{ \sigma }^{ 2 }),则Y\sim \frac { X-\mu }{ \sigma } \sim N(0,1). src=https://huaweicloudobs.ahjxjy.cn/D35D5DA30EBBBE21F4BA342AB3F6BFBF.png style=vertical-align: middle;/>
①
正确
②
错误
【判断题】
<img class=jc-formula data-tex=设X服从[0,5]上均匀分布，则方程4{ x }^{ 2 }+4Xx+2=0有实根的概率是\frac { \sqrt { 2 } }{ 5 } 。 src=https://huaweicloudobs.ahjxjy.cn/44D76CD32E053A42C18BE285FF20271E.png style=vertical-align: middle;/>
①
正确
②
错误
【简答题】
4. 面向对象方法学的优点有哪些？
【判断题】
若一随机变量的密度函数为：<img class=jc-formula data-tex=p(x)=\left\{ \begin{ matrix } A{ x }^{ 2 },01, \\ 0,其他， \end{ matrix } \right src=https://huaweicloudobs.ahjxjy.cn/067D8A4D4A814B7B0B0B7FA084B04965.png style=vertical-align: middle;/>则常数<img class=jc-formula data-tex=A src=https://huaweicloudobs.ahjxjy.cn/53F870B8D448BB3DB08A67264B6329F9.png style=vertical-align: middle;/>为3.
①
正确
②
错误
【判断题】
<img class=jc-formula data-tex=X\sim N(1,4) src=https://huaweicloudobs.ahjxjy.cn/59385F50086F8E8B4C823949581C9231.png style=vertical-align: middle;/>,则<img class=jc-formula data-tex=p(0X\le 1.6)=0.309 src=https://huaweicloudobs.ahjxjy.cn/BFD5ABB18905AB41FC70B2B439B19432.png style=vertical-align: middle;/>.
①
正确
②
错误