钟表上时针与分针夹角90度的时刻有那些

问题描述:

钟表上时针与分针夹角90度的时刻有那些

0:16:220:49:51:21:501:54:322:27:173:0:03:32:444:5:274:38:115:10:545:43:396:16:216:49:67:21:497:54:338:27:169:0:09:32:4310:5:2710:38:1011:10:5411:43:38大致在这些时间,共22个