In 300 A.D.Chinese children played with a fan-like toy that span upwards and fell back to earth as______ceased. A.emission B.motivation C.rotation D.suspension
A.D.Chinese B. A.emission B.motivation C.rotation D.suspension
【参考答案】
C rotation“旋转”;emission“释放出(光、热、气)”;motivation“动机,意图”;su......