There are many differences between American English and British English in spelling and pronunciation,

especially in _____ English. [ ]

A. written

B. oral

C. official

D. business

关于经纬度的说法，正确的是（）

A.每条经线都自成一个圆圈

B.纬线长度都相等

C.地球仪上经线有360条

D.同一纬线上的两点的位置为东、西关系