第6题: [单项选择]At what level do films operate A. Films operate at the rational level. B. Films operate at the emotional level. C. Films operate at the cold-evaluating level. 参考答案:B
第7题: [单项选择]1kg的水从15℃升高到16℃所吸收的能量即是()。 A. 1kcal B. 4.0kcal C. 9.0kcal D. 7.0kcal E. 16.7kcal 参考答案:A 答案解析:考查传统热量单位千卡的定义