某厂在自己生产的牙膏上注册“田七”商标，其后又在香皂、洗涤剂_爱下问搜题

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问题单项选择题

某厂在自己生产的牙膏上注册“田七”商标，其后又在香皂、洗涤剂上注册“田七”商标，后者即构成( )

A．防御商标

B．联合商标

C．证明商标

D．集体商标

答案

参考答案：A

选择题

(2013·山西太原一模)—My neighbor is always playing loud music late at night.

—________. You really should talk to him about it.

A．That's annoying

B．It's a good point

C．You've got it right

D．This is tricky

问答题简答题

什么是计算机网络协议（Portcol）？