在测量定值电阻Rx阻值的实验中.
Today is a nice day! The sun is shining. The birds are singing! Many people are p laying in the park! They are very happy! Look, the three girls are dancing! There are two boys flying the kite! There is a boy under the tree. He is listening to music. Some men are fishing. I love this day!
下列应用板块构造理论对地质地貌现象的解释,正确的是( )
①大西洋、北冰洋均由板块张裂而产生
②台湾山脉由太平洋板块与亚欧板块碰撞,亚欧板块受挤压上拱而成
③非洲板块与亚欧板块相撞,使地中海在缩小
④北太平洋西部的深海沟和弧状岛链是新的大洋地壳诞生处.