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[托福阅读辅导] 托福阅读练习材料:Silk(蚕丝)
蚕丝制品是我们平时非常常见的，但是蚕丝竟然是最强韧的天然纤维这点很多人不知道。下面，就请随小编进入今天的新托福阅读练习材料，讨论关于蚕丝的话题。 Silk is the strongest natural fiber in the world,2012-05-30 编辑：Daisy
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
2012-05-30 编辑：Daisy
