阿摩線上測驗
45 Which of the following statements about sewer pipes is true?
(A)They are a product of the 20th century.
(B)The acidity of the sewage does no damage to the pipes.
(C)They are underground.
(D)Their repair always comes in time.
(A)They are a product of the 20th century.
(B)The acidity of the sewage does no damage to the pipes.
(C)They are underground.
(D)Their repair always comes in time.
答案：登入後查看
統計： A(7), B(34), C(69), D(13), E(0) #982458
統計： A(7), B(34), C(69), D(13), E(0) #982458
