【多选题】Regarding data matrix and dissimilarity matrix, which of the followings are correct?
A.
The size of a data matrix depends on the number of data objects and the number of attributes.
B.
The size of a dissimilarity matrix depends on the number of data objects, and is irrelevant to the number of attributes.
C.
Data matrices are symmetric.
D.
Dissimilarity matrices are symmetric.
【单选题】类class Counter{ var value =0 } ,Scala采用类似Java中的getter和setter方法,value字段默认定义的方法是?
【单选题】The strong matrix versus a weak matrix.
A.
. team members are more likely to be assigned to the project office in a strong matrix
B.
. strong matrix is more difficult to manage.
C.
. the balance of power has shifted away from the PM.
D.
. functional managers no longer has control over the technical processes.
【多选题】For the matrix B, the correct description are
A.
If a=0 and b=0, the matrix rank =2
B.
If a=0 and b≠0, the matrix rank =3
C.
If b=0 and a≠0, the matrix rank =3
D.
If a≠0 and b≠0, the matrix rank =4
【单选题】Scala中,下面的哪个类定义是不正确的?
A.
class Counter{def counter = “counter”}
B.
class Counter{val counter = “counter”}
C.
class Counter{var counter:String}
D.
class Counter{def counter () {}}
【单选题】Scala中,下面的哪个类定义是不正确的?
A.
class Counter{def counter () {}}
B.
class Counter{def counter = “counter”}
C.
class Counter{var counter:String}
D.
class Counter{val counter = “counter”}
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【多选题】For the matrix A, the correct description are
【多选题】Google 广告网络可以将广告投放到Google的哪些网络?
【单选题】Scala 中,下面的哪个类定义是不正确的?
A.
class Counter{def counter = “counter”}
B.
class Counter{def counter () {}}
C.
class Counter{val counter = “counter”}
D.
class Counter{var counter:String}