【题目】（题文）______ expense, we must take every measure to save the old man's life.
A. Because of B. As a result of
C. Regardless of D. With regard to
在线课程【答案】C
【解析】词义辨析题。A. Because of 因为 B. As a result of 因为 C. Regardless of 不管、不顾 D. With regard to 关于 不管花费多少我们必须采取一切措施挽救老人的性命。 根据句意选C