单选题Variations in the color of sea water from blue to green seem to be caused by high or low concentrations of salt.A Changes B Descriptions C Measures D Clarity

题目
单选题
Variations in the color of sea water from blue to green seem to be caused by high or low concentrations of salt.
A

Changes      

B

Descriptions    

C

Measures

D

Clarity

相似考题

1.设有说明var color:(red,green,yellow,blue);a:boolean;下面语句正确的是( )。Aolor:=‘green‘;Bwriteln(green);Cwriteln(color);Da:=color=red;

2.publicclassBall{publicenumColor{RED,GREEN,BLUE};publicvoidfoo(){／／insertcodehere{System.out.println(c);}}}Whichcodeinsertedatline14causesthefoomethodtoprintRED,GREEN,andBLUE?()A.for（Colorc：Color.values（））B.for（Colorc=RED；c<=BLUE；c++）C.for（Colorc；c.hasNext（）；c.next（））D.for（Colorc=Color[0]；c<=Color[2]；c++）E.for（Colorc=Color.RED；c<=Color.BLUE；c++）

3.packagesun.scjp；publicenumColor{RED，GREEN，BLUE}packagesun.beta；//insertcodeherepublicclassBeta{Colorg=GREEN；publicstaticvoidmain（String[]argv）{System.out.println（GREEN）；}}TheclassBetaandtheenumColorareindifferentpackages.Whichtwocodefragments，insertedindividuallyatline2oftheBetadeclaration，willallowthiscodetocompile？（）A.importsun.scjp.Color.*；B.importstaticsun.scjp.Color.*；C.importsun.scjp.Color；importstaticsun.scjp.Color.*；D.importsun.scjp.*；importstaticsun.scjp.Color.*；E.importsun.scjp.Color；importstaticsun.scjp.Color.GREEN；

4.以下选项中不能正确把c1定义成结构体变量的是A．typedef struct {int red: int green: int blue; } COLOR; COLOR c1;B．struct color c1 {int red int green: int blue; };C．struct color {int red , int green : int blue : )cl;D．struct {int red; int green; int blue } c1 ;

更多“单选题Variations in the color of sea water from blue to green seem to be caused by high or low concentrations of salt.A Changes B Descriptions C Measures D Clarity”相关问题

  • 第1题：

    In the following statements about the principle of the low level controlling, which is WRONG? 0

    A.Low level is monitored on the drain tank and header tank.

    B.If there is high differential the filters pressure across the circulating

    pumps is alarmed

    C.The lubricating oil purifier cannot take oil from the drain tank

    D.If the sea water pressure falls, this also operates an alarm


    答案：C

  • 第2题：

    以下选项中不能正确把c1定义成结构体变量的是

    A．typedef struct { int red； int green；； int blue； }COLOR； COLOR cl；

    B．struct color cl { int red； int green； int blue； };

    C．struet color { int red； int green； int blue； }c1；

    D．struct { int red； int green； int blue； }cl；


    正确答案：B
    解析：结构体类型的定义格式为：
      stract结构体名
      成员说明列表}；
      结构体变量的定义有3种形式：第一种，定义结构体类型的同时定义结构体变量，如： street结构体名{成员说明列表}变量；第二种，先定义一个结构体类型，然后使用该类型来定义结构体变量，如：strect student{成员说明列表}；student变量；第三种，定义一个无名称的结构体类型的同时定义结构体变量，如：strect student{成员说明列表}变量；。

  • 第3题：

    下列选项中不能正确定义结构体的是_______。

    A．typedef struct

    B．struct color cl {int red； {int red； int green； int green； int blue； int blue； }COLOR； }； COLOR cl；

    C．struct color

    D．struct {int red； {int red； int green; int green； int blue； int blue； }cl； }cl；


    正确答案：B
    解析：将一个变量定义为标准类型与定义为结构体类型不同之处在于：后者不仅要求指定变量为结构体类型，而且要求指定为某一特定的结构体类型(例如，struct color)，不能只指定结构体名。其中可以不出现结构体名，答案D就是缺省结构体名的隋况。而变量名歹婊必须放在成员列表后面，所以B答案不能正确将cl定义为结构件变量。

  • 第4题：

    Conditions for crossing a rough bar are usually best at ______.

    A.low water slack

    B.high water slack

    C.high water ebb

    D.high water flood


    正确答案：B

  • 第5题：

    The meaning of ebb tide is that ______.

    A.tide is falling from high water to low water

    B.tide is rising from low water to high water

    C.tide is reaching to a highest level

    D.tide is reaching to a lowest level


    正确答案：A

  • 第6题：

    It can be known from the passage that increase in the salinity of ocean water is caused by___________.

    A.melting of sea ice
    B.precipitation
    C.evaporation
    D.supplement of salt

    答案：C
    解析：
    根据第一段“One of these is the subtraction of water from the ocean by means of evapora-tion．In this manner，the salinity is increased．”可知，答案为C，即海水蒸发可使盐度增加。

  • 第7题：

    public class Ball {  public enum Color { RED， GREEN， BLUE }；  public void foo（） {  // insert code here  { System.out.println（c）； }  }  }  Which code inserted at line 14 causes the foo method to print RED， GREEN， and BLUE？（） 

    • A、 for（ Color c ： Color.values（））
    • B、 for（ Color c = RED； c <= BLUE； c++）
    • C、 for（ Color c； c.hasNext（） ； c.next（））
    • D、 for（ Color c = Color[0]； c <= Color[2]； c++）
    • E、 for（ Color c = Color.RED； c <= Color.BLUE； c++）

    正确答案:A

  • 第8题：

    单选题
    What describes a flood current（）.
    A

    Horizontal movement of the water toward the land after high tide

    B

    Horizontal movement of the water toward the land after low tide

    C

    Horizontal movement of the water away from the land following high tide

    D

    Horizontal movement of the water away from the land following low tide


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    Black smoke coming from a boiler can be caused by （）.
    A

    low water level

    B

    low oil pressure

    C

    excessively high fuel pressure

    D

    an improper air/fuel ratio


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    The soundings on the chart are based on the depth of water available at （）.
    A

    mean low water

    B

    mean lower low water

    C

    mean high water

    D

    mean high water springs


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    The meaning of ebb tide is that（）.
    A

    tide is falling from high water to low water

    B

    tide is rising from low water to high water

    C

    tide is reaching to a highest level

    D

    tide is reaching to a lowest level


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    Oil slick caused by spillage of oil from tanker ship is（）.
    A

    a drop of oil

    B

    the emulsion of oil at sea surface

    C

    the weathered oil

    D

    the oil floating on the surface of the sea water


    正确答案： D
    解析： 暂无解析

  • 第13题：

    以下选项中不能正确把cl定义成结构体变量的是

    A．typedef struct { int red; int green; int blue; } COLOR; COLOR cl;

    B．struct color cl { int red; int green; int blue; }

    C．struct color { int red; int green; int blue; } cl;

    D．struct { int red; int green; int blue; } cl;


    正确答案：B
    解析：选项A)是把结构体类型改名后定义为变量cl。选项C)，D)则是在定义结构体类型时定义变量，而选项B)不符合结构体类型定义的语法规则。

  • 第14题：

    Low compression in a diesel engine could be caused by

    A.worn or broken cylinder liner sealing rings

    B.high cooling water temperature

    C.worn or broken piston rings

    D.low fuel oil pressure


    正确答案：C

  • 第15题：

    以下选项中能正确把c1定义成结构体变量的是( )。

    A．typedef struct { int red； int red； int green； int blue； }COLOR； COLOR c1；

    B．struct color c1 { int red int red； int green int blue； }；

    C．stmctcolor { int red， int green； int blue； }c1；

    D．struct { int red； int green； int blue； }c1；


    正确答案：D
    解析：因为结构体中不能出现同名的成员变量，所以选项A和B都是错误的；又因为结构体中成员的定义应该由分号隔开，所以选项C也是错误的。选项D定义了一个无名结构体，并同时定义该结构体变量c1，是正确的写法。故应该选择D。

  • 第16题：

    The height of a light is measured from which reference plane?

    A.Mean low water

    B.Mean high water

    C.Average water level

    D.Geographical sea level


    正确答案：B

  • 第17题：

    Oil slick caused by spillage of oil from tanker ship is ______.

    A.a drop of oil

    B.the emulsion of oil at sea surface

    C.the weathered oil

    D.the oil floating on the surface of the sea water


    正确答案：D

  • 第18题：

    The traffic lights were red when the driver reached them．To the surprise of his passenger,the ear did not slow down．Unexpectedly the passenger was thrown forward in the vehicle as the driver put on his brakes at the last moment．The car stopped just in time.
    "Sorry,I didn't notice the light．I thought it was green until I saw that it was the top light which was shining."
    This strange story is quite true．About ten men in every hundred are color blind in some way;women are luckier--only about one in two hundred suffers from color blindness.
    In some cases,a man may not be able to see deep red．He may think that red,orange and yellow are all the same as green.
    People often like one color more than others．Blue is the color of the sky and sea．Green makes us think of fields and trees．Red is the color of blood and makes some people think of danger．Black is the color of night．In the dark we cannot see what is around us so we are sometimes afraid of the unknown and do not like black as a color.

    One is considered as a color blind man if__.

    A.he can see the difference between red and deep red
    B.he can see the difference between blue and green
    C.he can't tell the difference between orange and green
    D.he thinks green is the same as blue

    答案：C
    解析：
    参见第四段。

  • 第19题：

    单选题
    Water in the fuel can prevent the engine from starting, prevent it from developing full power, or （）
    A

    run at an irregular speed

    B

    create high lube oil temperature

    C

    cause the engine to over-speed

    D

    cause blue smoke in the exhaust


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    Black smoke coming from a boiler can be caused by （）.
    A

    low water level

    B

    high water level

    C

    excessively high fuel pressure

    D

    low oil temperature


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    The height of a light is measured from which reference plane?（）
    A

    Mean low water

    B

    Mean high water

    C

    Average water level

    D

    Geographical sea level


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    One of the causes of ocean currents is density differences in the water. This is true because （）.
    A

    in an area of high density the water's surface is lower than in an area of low density

    B

    surface water flows from an area of high density to one of low density

    C

    the lesser the density gradient the freer the water is to move

    D

    it is the density differences that cause the currents to stay in the troughs


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    public class Ball {  public enum Color { RED， GREEN， BLUE }；  public void foo（） {  // insert code here  { System.out.println（c）； }  }  }  Which code inserted at line 14 causes the foo method to print RED， GREEN， and BLUE？（）
    A

     for（ Color c ： Color.values（））

    B

     for（ Color c = RED； c <= BLUE； c++）

    C

     for（ Color c； c.hasNext（） ； c.next（））

    D

     for（ Color c = Color[0]； c <= Color[2]； c++）

    E

     for（ Color c = Color.RED； c <= Color.BLUE； c++）


    正确答案： E
    解析： 暂无解析

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