Question

下列四組經(jīng)線中，能組成經(jīng)線圈的是（　�。�

A．東經(jīng)45°和東經(jīng)45°	B．西經(jīng)100°和西經(jīng)20°
C．西經(jīng)150°和東經(jīng)45°	D．東經(jīng)60°和西經(jīng)120°

Answer 1

比較題干中的四個選項可得，符合“之和是180°，一條是東經(jīng)度數(shù)，另一條則是西經(jīng)度數(shù)”的兩條經(jīng)線是東經(jīng)60°和西經(jīng)120°，此兩條經(jīng)線能組成經(jīng)線圈．
故選：D．