While you are on watch entering port, the Master gives the helmsman a rudder command which conflicts with a rudder command from the Pilot. You should make sure the helmsman ______.A.obeys the PilotB.obeys the MasterC.asks you for instructionsD.brings the

题目

While you are on watch entering port, the Master gives the helmsman a rudder command which conflicts with a rudder command from the Pilot. You should make sure the helmsman ______.

A.obeys the Pilot

B.obeys the Master

C.asks you for instructions

D.brings the rudder to a point midway between the two conflicting positions


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    航向

    A.bearing

    B.liner

    C.course

    D.rudder


    正确答案:C

  • 第2题:

    复示器

    A.indicator

    B.repeater

    C.panel

    D.rudder


    正确答案:B

  • 第3题:

    Usetheoperators">",whichstatementsaretrue?()

    A.00000100000000000000000000000000<<5gives10000000000000000000000000000000

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    D.11000000000000000000000000000000>>5gives00000110000000000000000000000000


    参考答案:A, C
    Java的移位操作符一共有三种,分别是”>>”,”>>>”,”<<”,执行的操作分别是有符号右移,无符号右移,左移,有符号右移的意思是说移入的最高位和原最高符号位相同,无符号右移是移入位始终补零,左移时最低位始终补零,最高位被舍弃。移位操作符另一个非常值得注意的特点是其右操作数是取模运算的,意思是说对于一个int型数据而言,对它移位32位的结果是保持不变而非变成零,即:a>>32的结果是a而不是0,同理,对long型数是对右操作数取64的模,a>>64==a;还有一点需要注意的是移位操作符”>>>”只对int型和long型有效,对byte或者short的操作将导致自动类型转换,而且是带符号的。

  • 第4题:

    舵工

    A.quarter

    B.master

    C.quartermaster

    D.rudder


    正确答案:C

  • 第5题:

    Watch your ____ !

    A.wheel

    B.steering

    C.helm

    D.rudder


    正确答案:B

  • 第6题:

    Are you the sailor on duty/ watch?


    正确答案:Yes, I am.