Question

ijһÖÖϸ¾úÒª´Ó»·¾³ÖлñÈ¡ÏֳɵÄÁÁ°±Ëᣨ20ÖÖ°±»ùËáÖеÄÒ»ÖÖ£©²ÅÄÜÉú³¤£¬´Ë¾úÖê¶ÔÁ´Ã¹ËØÃô¸Ð¡£ÊµÑéÕßÓÃÓÕ±ä¼Á´¦Àí´Ë¾úÖ꣬Ïëɸѡ³ö±íÖÐϸ¾ú¾úÖêÀàÐÍ¡£¸ù¾ÝʵÑéÕßµÄÄ¿µÄ£¬Ñ¡ÓõÄÅàÑø»ùÀàÐÍÊÇ

×¢£º£Ì¡ªÁÁ°±Ëá¡¡¡¡£Ó¡ªÁ´Ã¹ËØ¡¡¡¡¡°£«¡±¡ª¼ÓÈë¡¡¡¡¡°¡ª¡±¡ª²»¼ÓÈë

È磺£Ì¡ª£º²»¼ÓÁÁ°±Ëá¡¡¡¡£Ó£«£º¼ÓÈëÁ´Ã¹ËØ

Ñ¡Ïî	ɸѡ³ö²»ÐèÒªÁÁ°±ËáµÄ¾úÖê	ɸѡ³ö¿¹Á´Ã¹ËصľúÖê	ɸѡ³ö²»ÐèÒªÁÁ°±ËáµÄ¿¹Á´Ã¹ËصľúÖê
£Á	£Ì£«¡¡¡¡£Ó£«	£Ì¡ª¡¡¡¡£Ó¡ª	£Ì£«¡¡¡¡£Ó£­
£Â	£Ì£­¡¡¡¡£Ó¡ª	£Ì£«¡¡¡¡£Ó£«	£Ì¡ª¡¡¡¡£Ó£«
£Ã	£Ì¡ª¡¡¡¡£Ó£«	£Ì£«¡¡¡¡£Ó£«	£Ì¡ª¡¡¡¡£Ó¡ª
£Ä	£Ì£«¡¡¡¡£Ó¡ª	£ì¡ª¡¡¡¡£Ó¡ª	£Ì£«¡¡¡¡£Ó£«

Answer 1

B