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

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：考查形容词：A. accurate精确的，B. optimistic乐观的，C. positive积极地，D. temporary暂时的，句意：在热烈的讨论后，职员们递交了可能帮助公司提高公司产品质量的积极的建议。选C。