問題詳情

20 Which of the following statements is true?
(A) Sundials were invented in Europe in the fourteenth century.
(B) The hourglass was the first instrument humans invented to measure time.
(C) The first spring-powered clock was invented in China.
(D) Electric-powered clocks are more accurate than spring-powered clocks.

參考答案

答案:D
難度:適中0.694215
統計:A(9),B(20),C(5),D(84),E(0) #
個人:尚未作答書單:english junior high 1、介係詞

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