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问题 单项选择题

测定下列哪种物质可预测评估患者体内肿瘤细胞转移危险性（）

A.免疫球蛋白超家族

B.LI-钙粘素

C.E-选择素

D.CD44变异体分子的RNA

E.整合素

答案

参考答案：D

单项选择题

Since life began eons ago, thousands of creatures have come and gone. Some, such as the dinosaurs, became extinct due to naturally changing ecologic conditions. More recent threats to life forms are humans and their activities. Man has drained marshes, burned prairies, dammed and diverted rivers. Some of the more recent casualties of man’’s expansion have been the dodo, great auk, passenger pigeon, Irish elk, and Steller’’s sea cow. Sadly, we can no longer attribute the increasing decline in our wild animals and plant species to "natural" processes. Many species are dying out because of exploitation, habitat alteration or destruction, pollution, or the introduction of new species of plants and animals to an area. As mandated by Congress, protecting endangered species, and restoring them to the point where their existence is no longer jeopardized, is the primary objective of the U.S. Fish and Wildlife Service’’s Endangered Species Program.

Which of the following is NOT a cause of increasing decline of wild animal population

A．Exploitation.

B．Pollution.

C．Habitat alteration.

D．Congressional law.
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单项选择题 案例分析题

2014年朱某在某市合法开设了一家印刷厂，从事印刷经营活动。一家企业委托朱某的印刷厂为其印刷注册商标标识，这家企业称其为该商标的被许可使用人，并向朱某提供了注册商标使用许可合同和注册商标的图样。朱某看后接受了委托开始为这家企业印刷商标标识5000元。2015年这家企业因冒充注册商标被某市工商行政管理局查获，在调查中发现是朱某的印刷厂为其提供的商标印刷，该局认为朱某的印刷企业违反了印刷业管理条例的有关规定，没收了其非法所得，并处以罚款。朱某认为有那家企业提供的注册商标使用许可合同和注册商标图样，自己并没有违反印刷业管理条例的有关规定。

某印刷厂依照条例规定还需验证哪项证明？（）

A.营业执照

B.商标注册证

C.商标使用证
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