更多“67 A above         B about         C beside       D within”相关问题
  • 第1题:

    80 A recurring communication pattern within the project organization or company is called a:

    A. free-form. matrix

    B. structured matrix

    C. network

    D. rigid channel

    E. None of the above


    正确答案:C

  • 第2题:

    45 The most common definition of project success is:

    A. Within time

    B. Within time and cost

    C. Within time, cost and technical performance requirements

    D. Within time, cost, performance and accepted by the customer/user

    E. None of the above


    正确答案:D

  • 第3题:

    ● The most common definition of project success is:

    A Within time

    B Within time and cost

    C Within time, cost and technical performance requirements

    D Within time, cost, performance and accepted by the customer/user

    E None of the above


    正确答案:D

  • 第4题:

    ICMP is often used in troubleshooting and verifying network. What statements are true regarding ICMP packets? (Choose two)

    A. They acknowledge receipt of TCP segments.

    B. They guarantee datagram delivery.

    C. They can provide hosts with information about network problems.

    D. They are encapsulated within IP datagrams.

    E. They are encapsulated within UDP datagrams.

    F. They are encapsulated within TCP datagrams.


    正确答案:CD
    C,D 解析:Explanation:
    ping may be used to find out whether the local machines are connected to the network or whether a remote site is reachable. This tool is a common network tool for determining the network connectivity which uses ICMP protocol instead of TCP/IP and UDP/IP. This protocol is usually associated with the network management tools which provide network information to network administrators, such as ping and traceroute (the later also uses the UDP/IP protocol).

    ICMP is quite different from the TCP/IP and UDP/IP protocols. No source and destination ports are included in its packets. Therefore, usual packet-filtering rules for TCP/IP and UDP/IP are not applicable. Fortunately, a special "signature" known as the packet's Message type is included for denoting the purposes of the ICMP packet. Most commonly used message types are namely, 0, 3, 4, 5, 8, 11, and 12 which represent echo reply, destination unreachable, source quench, redirect, echo request, time exceeded, and parameter problem respectively.

    Incorrect Answers
    ICMP is an IP protocol so A and E are incorrect.
    ICMP doesn't guarantee datagram delivery so B is wrong as well.

  • 第5题:

    Spontaneous combustion is caused by ______.

    A.An outside heat source heating a substance until it ignites

    B.Conduction of heat through a wall of material to the substance

    C.Chemical action within a substance

    D.All of the above


    正确答案:C

  • 第6题:


    What is the passage primarily about?( )

    A.Alexis de Tocqueville.
    B.The impact of the book Democracy in America.
    C.The book of Democracy in America.
    D.The progress achieved in America within about 40 years after adoption of the US Constitution.

    答案:C
    解析:
    细节题。本文并非只描述托克维尔本人,A项错误;B项过于片面,文中不仅讲了《美国的民主》一书的影响,还讲了这本书的内容和创作过程等;D项“美国宪法通过后约40年内取得的进展”与文章意思不符。

  • 第7题:

    He was()about his new job.

    • A、over the moon
    • B、on the moon
    • C、off the moon
    • D、above the moon

    正确答案:A

  • 第8题:

    What statements are true regarding ICMP packets?()

    • A、They acknowledge receipt of TCP segments.
    • B、They guarantee datagram delivery.
    • C、They can provide hosts with information about network problems.
    • D、They are encapsulated within IP datagrams.
    • E、They are encapsulated within UDP datagrams.

    正确答案:C,D

  • 第9题:

    单选题
    I was busy with my paper when I heard someone()in the room above.
    A

    moving on

    B

    moving off

    C

    moving up

    D

    move about


    正确答案: C
    解析: 暂无解析

  • 第10题:

    单选题
    The color of the signal flare sent up by a submarine about to surface due to an emergency condition within the submarine is().
    A

    green

    B

    red

    C

    white

    D

    yellow


    正确答案: B
    解析: 暂无解析

  • 第11题:

    单选题
    Before entering the chain locker,you should().
    A

    have someone standing by

    B

    make sure there is sufficient air within the locker

    C

    de-energize the windlass

    D

    All of the above


    正确答案: C
    解析: 暂无解析

  • 第12题:

    单选题
    65. A about     B with       C beside       D clown
    A

    A

    B

    B

    C

    C

    D

    D


    正确答案: B
    解析:

  • 第13题:

    79 Under the terms of 2/10 net 30, the buyer may:

    A. deduct 10% of the invoice amount for payment within 30 days

    B. deduct 2% of the invoice for payment within 10 days

    C. incurs a penalty on 10% for payments more than 30 days late

    D. settle the invoice with 2 equal payments; one within 10 days and the other within 30 days

    E. None of the above


    正确答案:B

  • 第14题:

    67 Life Cycle Costing:

    A. is the concept of including all costs within the total life of a project.

    B. is an activity devoted to optimizing cost/performance

    C. is an activity of appraising the cost and technical performance of a completed project.

    D. is a process of predicting the life of a project.

    E. None of the above.


    正确答案:A

  • 第15题:

    He was () about his new job.

    A、over the moon

    B、on the moon

    C、above the moon


    参考答案:A

  • 第16题:

    The symbol which appears beside a light on a chart reads Gp Fl R (2) 10 sec 160 ft 19M. Which characteristic describes the light?

    A.It is visible 10 miles

    B.Its distinguishing number is 19M

    C.It has a radar reflector

    D.None of the above


    正确答案:D

  • 第17题:

    If a cargo of kerosene were considered too lean to explode,then it must be ______.

    A.Above the explosive range

    B.Within the explosive range

    C.Below the explosive range

    D.None of the above


    正确答案:C

  • 第18题:

    I was busy with my paper when I heard someone()in the room above.

    Amoving on

    Bmoving off

    Cmoving up

    Dmove about


    D

  • 第19题:

    Which two statements about the IS -IS routing protocol are true?()

    • A、IS - IS is capable of supporting IPv4 and IPv6.
    • B、IS - IS is only capable of supporting IPv4 and CLNS.
    • C、IS - IS routers use ES - IS hellos (ESH) to establish and to maintain neighbor relationships.
    • D、IS - IS routers run the Bellman - Ford algorithm against their LSDBs to pick the best paths.
    • E、Level 1 routers learn about paths within the area of which they are a part.
    • F、Level 2 routers learn about paths both within areas and between areas.

    正确答案:A,E

  • 第20题:

    You have configured a firewall filter with a single term matching on packets with a source address in the 10.0.0.0/24 subnet. This term only includes the count action.Which two statements are true about traffic evaluated by this firewall filter?()

    • A、Packets within the 10.0.0.0/24 subnet will be accepted.
    • B、Packets within the 10.0.0.0/24 subnet will be rejected.
    • C、Packets within the 10.0.0.0/24 subnet will be counted.
    • D、Packets within the 10.0.0.0/24 subnet will not be counted.

    正确答案:A,C

  • 第21题:

    单选题
    ______hundreds of pieces of litter.
    A

    Were lying beside the road

    B

    Were beside the road lying

    C

    Beside the road lying were

    D

    Lying beside the road were


    正确答案: D
    解析:
    在道路两旁放着数百块垃圾。这里采用倒装形式,故D正确。

  • 第22题:

    单选题
    Which condition is necessary for a substance to burn?()
    A

    The temperature of the substance must be equal to or above its fire point

    B

    The air must contain oxygen in sufficient quantity

    C

    The mixture of vapors with air must be within the explosive range

    D

    All of the above


    正确答案: D
    解析: 暂无解析

  • 第23题:

    单选题
    What do you know about “above-average effect” based on the passage?
    A

    Most Americans assess themselves as above average.

    B

    American doctors overestimated how well they had performed on a test of medical diagnoses.

    C

    American gun enthusiasts thought they knew more than they actually did about gun safety.

    D

    All of the above.


    正确答案: A
    解析:
    本题可参照文章的第十段。从中可知,大多数美国人认为自己高于平均水平。而接下来的一段作者又举了两个例子,一个是美国的医生,还有一个是枪支爱好者,因此D项是正确答案。