oh shit, i signed up maxisbb power user. Then i found this 3GB rules.
damn...the worst is, when i tested with skype video call, xunlei live tv in good result, sufing net in fast speed　ｗｉｔｈｉｎ　７　ｄａｙｓ　ｔｒｉａｌ　ｐｅｒｉｏｄ，　ｉ　ｈａｄ　ｔｅｒｍｉｎａｔｅｄ　ｍｙ　ｔｍｎｕｔ　ｓｔｒｅａｍｙｘ　ｓｅｒｖｉｃｅ．　ｗｈａｔ　ｉ　ｃａｎ　ｄｏ　ｎｏｗ．