(µ¥Ñ¡Ìâ)30: ÈôÒ»Á£×ÓÔÚÒ»Á¢·½ÏäÖУ¬ÔòÔÚE¡Ü3h2/2ml2µÄÄÜÁ¿·¶Î§ÄÚ£¬ÓжàÉÙ¸öÄܼ¶£¬¶àÉÙ¸ö״̬£¿-------------------------------------------- ( )
A: 1£¬1
B: 2£¬4
C: 3£¬7
D: 5£¬11
(ÔðÈα༣ºadmin)ÒªÕâ´ð°¸¼ÓQQ£º800020900 »ò¼Ó΢ÐÅ£ºvq800020900 »ñÈ¡