ÌâÄ¿ÄÚÈÝ
öèÓãÊÇÊÀ½çÉÏΨһ²»»¼°©Ö¢µÄ¶¯ÎÑо¿·¢ÏÖÆäÌåÄÚº¬ÓеĽÇöèÏ©£¨C30H50£©Óп¹°©×÷Óá£ÓйؽÇöèÏ©µÄ×é³É»ò¹¹³ÉµÄÐðÊöÕýÈ·µÄÊÇ £¨ £©
¢Ù½ÇöèÏ©ÊÇÓÉ̼ÇâÁ½ÖÖÔªËØ×é³ÉµÄ¢Ú½ÇöèÏ©ÊÇÓɽÇöèÏ©·Ö×Ó¹¹³ÉµÄ
¢Û½ÇöèÏ©·Ö×ÓÊÇÓÉ̼ÇâÁ½ÖÖÔªËع¹³ÉµÄ¢Ü½ÇöèÏ©Öк¬ÇâÔªËصÄÖÊÁ¿·ÖÊýΪ14.3%
¢Ý½ÇöèÏ©·Ö×ÓÖÐ̼Ô×ÓºÍÇâÔ×ӵĸöÊý±ÈΪ3︰5
A£®¢Ù¢Ú¢Û¢Ü¢Ý B£®¢Ú¢Û¢Ü¢Ý C£®¢Ù¢Ú D£®¢Ù¢Ú¢Ý
D
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿