A:4﹣甲基一2一乙基戊烷
B:2,5﹣二甲基戊烷
C:2﹣乙基﹣4﹣甲基戊烷
D:2,4﹣二甲基己烷
When we told him the surprising news, he didn't feel surprised _______.
关于经纬线的说法,正确的是( )