53. Which of the following is true?
(A) Leonardo finished the work in 15 minutes.
(B) Visitors can only appreciate the work for 15 minutes.
(C) Visitors can only appreciate the work in the morning.
(D) Leonardo finished the work in the morning.

答案：登入後查看
統計： A(1), B(2), C(1), D(0), E(0) #2753732