参考答案和解析
参考答案:B
更多“There are only four areas _____ very many diamonds have been found. ”相关问题
  • 第1题:

    What a waste! Why do you () the water () all the time ?

    A、have…flowing

    B、have…flow

    C、have…to flow

    D、have…flowed


    参考答案:A

  • 第2题:

    When implementing OSPFv3, which statement describes the configuration of OSPF areas?()

    A. In interface configuration mode, the OSPFv3 area ID combination assigns interfaces to OSPFv3 areas.

    B. In router configuration mode, the network wildcard area ID combination assigns networks to OSPFv3 areas.

    C. In interface configuration mode, the IPv6 OSPF process area ID combination assigns interfaces to OSPFv3 areas.

    D. In router configuration mode, the IPv6 OSPF interface area ID combination assigns interfaces to OSPFv3 areas.


    参考答案:C

  • 第3题:

    6、对于下述命令,如何利用pipe符号进行改写: by_cut <- group_by(diamonds, cut) count_cuts <- mutate(by_cut, N = n())

    A.count_cuts <- diamonds %>% group_by(cut) %>% mutate(N = n())

    B.count_cuts <- diamonds %>% mutate(N = n()) %>% group_by(cut)

    C.count_cuts <- diamonds %<% group_by(cut) %<% mutate(N = n())

    D.count_cuts <- diamonds %<% mutate(N = n()) %<% group_by(cut)


    管子;

  • 第4题:

    Examine the following options, Multicasting supports applications that communicate.()

    A. many - to - one

    B. one - to - one

    C. one - to - many

    D. many - to - many


    参考答案:C

  • 第5题:

    If the bill of lading contains the words weight and quantity unknown,the shipper must ______ that the goods were in fact shipped to succeed in an action for non-deli-very.

    A.show

    B.make

    C.get

    D.have


    正确答案:A

  • 第6题:

    4、有一个dataframe名为diamonds,请问命令slice(diamonds, (n() - 5):n())执行了什么操作?

    A.选择diamonds的后6行数据

    B.选择diamonds的后5行数据

    C.选择diamonds的后6列数据

    D.选择diamonds的后5行数据


    A