阿摩線上測驗
17 Which of the following is also called “sun clocks”？
(A) Sundials
(B) Hourglasses
(C) Spring-powered clocks
(D) Battery-powered clocks
答案：登入後查看
統計： A(198), B(27), C(23), D(14), E(0) #546539
統計： A(198), B(27), C(23), D(14), E(0) #546539
