33. What is this passage mainly about?
(A) The slave problems in colonial America
(B) The sources of workers in colonial America
(C) Overabundance of laborers in colonial America
(D) Excessive government interference in colonial America
詳解 (共 1 筆)
未解鎖
第一段: 文章開頭介紹了殖民地美國的勞動...