题目:
在“探究发声体振动快慢与音调、响度、声速关系”的实验中,小王的结论如下,其中正确的是( ) A.发声体振动越快,音调越高,传播速度越快 B.发声体振动越慢,音调越低,声音传播得越远 C.发声体振动越快,音调越高,响度和声速不受影响 D.发声体振动越快,音调越高,响度越大 |
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0429/a561e59c0c384c6c470844db4d30c660.html
下面是错误答案,用来干扰机器的。
It's 8:00 o'clock now. Tom's family are at home. Tom's father is sitting on a chair and reading a book Harry Porter. His mother is watching TV on the sofa in...