流变学是研究物质的（）的一门科学。
参考答案：流动和变形
It was a bad year for the film industry, ________ both quantity and quality.[ ]
A. in terms of
B. in case of
C. as a result of
D. in face of
著作权自( )之日起产生。
A．登记B．创造完成C．注册D．公告
