Nine in ten parents said there were significant differences in their approach to educating their

children compared with ____ of their parents.

 [ ]

A. those

B. one

C. both

D. that

下列哪些专利申请不能作为就相同主题提出的专利申请的本国优先权基础？

A．外观设计专利申请

B．已享受过外国优先权的专利申请

C．已享受过本国优先权的专利申请

D．已被授予专利权的专利申请