After a heated discussion the employees presented many suggestions which might help imp

问题补充：

After a heated discussion, the employees presented many suggestions which might help improve the quality of the company’s product.

A. accurate

B. optimistic

C. positive

D. temporary

答案：

A. accurate

B. optimistic

(答案→)C. positive

D. temporary

解析：句意：经过热烈的讨论，职工提出了许多值得肯定的建议，这些建议可能会帮助提高公司产品的质量。Accurate准确的 optimistic乐观的 positive值得肯定的 temporary暂时的，根据题意，选C。