下图是某国南方某河流的一河段,河中有沙金,淘金处可能在( )  

下图是某国南方某河流的一河段,河中有沙金,淘金处可能在(  )

 

A.①    B.②    C.③    D.④

 

答案

B

 

沙金主要分布于泥沙堆积处,图示河流拐弯处,凹岸会发生侵蚀,凸岸会发生泥沙堆积,故淘金处可能在②处。

 

相关题目

用低倍显微镜观察人的口腔上皮细胞实验中,四位同学在视
用低倍显微镜观察人的口腔上皮细胞实验中,四位同学在视野中看到的物像分别如下图所示,你认为观察效果最好的是(    ) 
写出下列加点字的读音。 (1)偌大(      )       
写出下列加点字的读音。 (1)偌大(      )        (2)沧桑(      )        (3)老茧(      ) (4)诚挚(      )       
随着我国经济持续高速增长、市场竞争日益扩张、竞争不断
随着我国经济持续高速增长、市场竞争日益扩张、竞争不断升级、商战已开始进入“智”战时期,广告也从以前的所谓“媒体大战”、“投入大战”上
 –Please tell us something about Shennongjia.        –I’m sorry,
 –Please tell us something about Shennongjia.        –I’m sorry, but neither Jack nor I       there.       A. have been     B. had been      C. have gone     D
如图,直线AB、CD相交于O,且∠AOC=2∠BOC,则∠AOD的度数为__
如图,直线AB、CD相交于O,且∠AOC=2∠BOC,则∠AOD的度数为________  
(2010·福建莆田九中高三上第二次月考)    34. The reason ____
(2010·福建莆田九中高三上第二次月考)    34. The reason ____ Malcolm didn’t study art was ___ his father didn’t want him to. A. why; that    B. why; because     C. for;
What is your favorite color? Do you like yellow,orange,red? If you do,you
What is your favorite color? Do you like yellow,orange,red? If you do,you must be an optimist,a leader,an active person who enjoys life,people and excitement.Do you prefer grey and blues
当________时,分式无意义;当______时,分式的值为.
当________时,分式无意义;当______时,分式的值为.

最新题目