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[2014年7月VOA常速英语] VOA常速英语(翻译+字幕+讲解):用来透视小肠内部的纳米果汁
小肠并不小,但并不容易检查,小肠被挤在胃和大肠之间,在普通成年人体内,小肠有7米长,2.5厘米厚。由于安全性、可进入性和低分辨率,要想获得小肠的X光、磁共振图像或超声波图像很不容易。2014-07-09 编辑:Sunny
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
2014-07-09 编辑:Sunny