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数据库管理系统的主要功能有 1 、 2 、数据库的运行管理和数据库的建立以及维护等4个方面。
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皮皮学刷刷变学霸
举一反三
【单选题】Every habitat in the world, from volcano tops to icebergs, can support some sort of life.
A.
country
B.
environment
C.
food source
D.
practice
【单选题】Every habitat in the world from volcano tops to icebergs can support some sort of life.
A.
Country
B.
Environment
C.
Food source
D.
Practice
【单选题】What point does the professor make about species when she discusses allterrain vehicles?
A.
A species cannot be expected to survive every type of disaster.
B.
A species adapted to many different types of habitats is more likely to survive disasters.
C.
Most species will not survive a global flood.
D.
Most species are equipped to thrive in only one type of habitat.
【简答题】语法填空Animals can become enered for a number of reasons,but many experts believe that loss of habitat is the main cause.Some animals are put 1. ____er when people take over their habitats.This o...
【多选题】( )丧失后,可以由失票人通知付款人和代理付款人进行挂失止付。
A.
已承兑的商业汇票
B.
支票
C.
填明“现金”字样和代理付款行的银行汇票
D.
填明“现金”字样的银行本票
【单选题】Every habitat in the world, from volcano tops to icebergs, can support some sort of life. Habitat means _______
A.
country
B.
environment
C.
food source
D.
practice
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