ä¸å»ºè®®ä¹°è¿ä¸ªï¼
1ãé»ç³çé¢è²æ¯D,E,F,G,H,I,Jçï¼å ¶ä¸æå ·å¤æ§ä»·æ¯çé¢è²æ¯Hï¼è¿ä¸ªä½ä¸ä¸ªç级ãå¦æ大äº50åè¿å¯ä»¥æ¥åï¼ä½è¿ä¸ª30åçï¼æäºä½äºã
2ãé»ç³çå度ï¼è¿ä¸ªæäºä½ï¼åæ ·çï¼å¦æ大äº50åçï¼è¿æ ·çå度ä¹æ¯å¯ä»¥æ¥åçï¼ä½è¿ä¸ªåªæ30åï¼å°±æäºåä½äºã
3ãè¿ä¸ªä¹ç®æ¯30åçé»ç³äºï¼è®©ä»ä»¬æä¾GIAï¼IGI,HRDè¯ä¹¦ï¼è¿ä¸ä¸ªæ¯å½é ä¸å¤§é»ç³è¯ä¹¦ä¹ä¸ã
ä½ ä¸è¾¹æ²¡åä»ä»¬çä»·æ ¼ï¼å¦ä¸çå¯ä»¥ä½ä¸ºåèï¼50åé»ç³ï¼å¤§è¿2åï¼ï¼På度ï¼ä¸æ ·çå度ï¼ï¼Hè²ï¼é«ä¸ä¸ªç级çé¢è²ï¼ãè¿æ¬¾æä¾GIAè¯ä¹¦ï¼æè NGTCï¼ç®æ¯GIAå¨ä¸å½æ¯é¨ï¼ãå 为GIAè¿å ¥ä¸å½è¾æ©ï¼æ以认å¯åº¦è¾é«ã