Question

與東經(jīng)116°經(jīng)線共同組成經(jīng)線圈的另一個經(jīng)線的經(jīng)度是（　　）

A．東經(jīng)64°

B．西經(jīng)64°

C．西經(jīng)116°

D．0°

Answer 1

經(jīng)線的形狀是半圓，兩條相對的經(jīng)線組成一個經(jīng)線圈，度數(shù)和為180°，東西經(jīng)相反．故與東經(jīng)116°經(jīng)線共同組成經(jīng)線圈的另一個經(jīng)線的經(jīng)度是西經(jīng)64°．
故選：B．