Question

與東經(jīng)20°正好相對(duì)的經(jīng)線是（　�。�

• A、西經(jīng)60°
• B、西經(jīng)160°
• C、東經(jīng)160°
• D、東經(jīng)60°

Answer 1

分析：地球儀上任何兩條相對(duì)的經(jīng)線（之和180°，一條是西經(jīng)度數(shù)，另一條是東經(jīng)度數(shù)）組成的經(jīng)線圈都可將地球分成相等的兩個(gè)半球．

解答：解：與東經(jīng)20°正好相對(duì)的經(jīng)線是西經(jīng)160°，選項(xiàng)ACD不符合題意．
故選：B．

點(diǎn)評(píng)：本題考查相對(duì)經(jīng)線的特點(diǎn)，理解解答即可．