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[与美国小学生一起学英文 第9册] 与美国小学生一起学英文第9册(MP3+中英字幕) 第25期:直径
A diameter is a straight line inside a circle. 直径是圆内的直线。2017-09-08 编辑:villa
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[趣味知识小百科] 卫星大小比较
我们是通过直径测量的,等下你就听到啦。2021-07-04 编辑:shixiaoye
Severity: Notice
Message: Memcache::connect(): Server 127.0.0.1 (tcp 11211, udp 0) failed with: Connection refused (111)
Filename: libraries/Cache_file.php
Line Number: 28
Severity: Warning
Message: Memcache::connect(): Can't connect to 127.0.0.1:11211, Connection refused (111)
Filename: libraries/Cache_file.php
Line Number: 28
2017-09-08 编辑:villa
2021-07-04 编辑:shixiaoye