题目

为了验证Fe3+的性质，某化学兴趣小组设计了下图所示的一组实验，其中实验方案设计错误的是 () A . ② B . ③ C . ③④ D . ①②③④⑤ 答案：CAll living organisms (有机物), __________ their unique identity, have biological, chemical and physical characteristics in common.    A. as a consequence of     B. for the sake of   C. in terms of        D. regardless of