least squared estimation

A: cross

B: circle

C: square

D: triangle

传播模型校正时，主要查看以下那几个参数?

A、Average

B、Standard Deviatio

C、Root Mean Square

D、以上都不对

How long should we keep the video tapes of surveillance cameras?

A.You should keep the video tapes for at least five months.

B.The video tapes should be kept for at least three months.

C.You should keep the video tapes for at least one month

D.You should keep the video tapes for at least two months.

A special daymark is a ______.

A.red-and-white octagon

B.daymark with a yellow stripe on it

C.green square

D.yellow diamond

A. Flex Links

B. loop-free U

C. looped square

D. looped triangle

如何能够定义列表的项目符号为实心矩形()。

A.list-type:square

B.type:2

C.type:square

D.list-style-type:square

A. Flex Links

B. loop-free U

C. looped square

D. looped triangle

E. loop-free inverted U

对于线性回归模型，包括附加变量在内，以下的可能正确的是()

1.R-Squared和AdjustedR-squared都是递增的

2.R-Squared是常量的，AdjustedR-squared是递增的

3.R-Squared是递减的，AdjustedR-squared也是递减的

4.R-Squared是递减的，AdjustedR-squared是递增的

A.1和2

B.1和3

C.2和4

D.以上都不是

Software Engineering Economy is an effective part of software engineering.Which of the following content is the research content of software engineering economy?

Ⅰ.Estimation of software development cost

Ⅱ.Earn & Cost analysis of software development

Ⅲ.Adjustment of software development progress

A．Ⅲ only

B．Ⅱ and Ⅲ

C．Ⅰ and Ⅱ

D．all

How long must the GMDSS radio log be retained on board ________．

A.At least two years after the last entry

B.At least one year after the last entry

C.At least 90 days after the last entry

D.At least 30 days after the last entry