ETS在做听力的时候,有两个钮,一个是"OK" , 一个是"NEXT" 我在做的时候,OK 一直都是灰色的,偶一直点的都是"NEXT"做下一题,但是他给出的说明里面说这两个钮都是有用的.是点HELP出现的. The"ok"button is disabled and the "NEXT"button is enabled until you answer the question. Answer the question and click the "NEXT"button. The "NEXT" button is now disabled and the "OK" button is enabled. Click the "OK" button to move to the next question. Once you "OK" your answer, you will not be able to return to the prior question. If you decide to change your answer, you will need to repeat the fist step in this process. 这儿说的是要改答案重复什么步骤呢?
在上面两段话前面各有图标 第一个是 OK, 在OK下面划了两个对号, 后面一个NEXT,在下面有一个指示箭头 第二个就反过来, OK两个对号, NEXT,在下面一个箭头 偶不会画那个图. 在前面的说明里也说 Click on Next and OK to go to the next question. 这两个键是怎么回事呢,请大家帮忙解释一下,谢谢.
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