大多数固相反应处于（）。
A.化学反应动力学范围
B.扩散动力学范围
C.过渡范围
参考答案：B
Which of the following might be an undesirable trait of a member of the board of directors（）
A. Experience with the technologies, products, and services the firm offers.
B. Positive public statements regarding an individual’s ethical viewpoints.
C. Service on the board for more than 10 years.
无梁板系指不带梁直接用柱头支承的楼板，其体积为（）。
