听力原文:(A) They are raising the pipes.(B) They are lying down on the ground.(C) They are

外语类 听力,原文 已帮助 人

听力原文:(A) They are raising the pipes.

(B) They are lying down on the ground.

(C) They are digging in the ground.

(D) They are repairing a power cable.

A.

B.

C.

D.

热搜:可导致听力损伤的药物是