更多"[判断题]Patents discourage companies f"的相关试题:
[判断题] Patents discourage companies from committing themselves to extensive basic research.
A.正确
B.错误
[判断题]. (判断题,)Global expansion offers companies the opportunity to generate greater profits than companies that focus strictly on the domestic market.
A.正确
B.错误
[单选题]The shipping companies request their customers to have the cars ________ before they are transporteD.
A. cleaning
B. cleaned
C.clean
D.be cleaned
[判断题]
A benefit to companies of economic integration is the opportunity to centralize their production and reduce costs.
A.正确
B.错误
[简答题]
To leverage subsidiary skills, companies should establish incentive systems that encourage local employees to acquire new skills.
[判断题]
A currency swap deal enables companies to insure themselves against foreign exchange risk.
A.正确
B.错误
[单选题]Some companies might not ley you rent a car you have a credit card
A.for
B. because
C. since
D. unless
[单选题]If you have time, talk to those companies that you are particularly interested___.
A. in
B. on
C. for
D. with
[判断题]
The firm that sources from independent suppliers has fewer subunits to control.()
A.正确
B.错误
[单选题]Select top 40 percent sName,sAddress,from students
结果返回10行数据,则(选一项)
A.表students中只有10行数据。
B.表students中只有25行数据。
C.表students中只有10行数据。
D.表students中只有40行数据。
[单选题]在 MySQL 中,SELECT * FROM 表 WHERE … ORDER BY 字段1 ASC,字段2 DESC 该查询排序说法正确的是()。
A.字段1是次排序,升序;字段2主排序,降序
B.字段1是主排序,降序;字段2次排序,升序
C.字段1是主排序,升序;字段2次排序,降序
D.以上说法都不正确
[判断题]查看空闲超时设置的命令是
select profile,limit from dba_profiles where profile='DEFAULT' and resource_name='IDLE_TIME';。
A.正确
B.错误
[单选题]分析以下SQL语句:
SELECT DISTINCT 产品.产品名称,产品.单价 FROM 产品
WHERE(((产品.单价)>(SELECT AVG([单价]) FROM 产品)))
ORDER BY产品.单价DESC
下面说法错误的是(选一项)
A.“SELECT AVG([单价])FROM产品”是子查询
B.“ORDER BY产品.单价 DESC”是指按单价从低到高顺序排列
C.查询结果显示的是单价大于平均价格的记录
D.此查询显示的字段只有“产品名称”和“单价”
[判断题]
Societal business ethics are divorced from personal ethics.
A.正确
B.错误
[单选题]在 MySQL 中,SELECT * FROM student 该代码中的 * 号,表示的正确含义是()。
A.普通的字符*号
B.错误信息
C.所有的字段名
D.模糊查询
[多选题]在 MySQL 中,SELECT * FROM 表 WHERE 字段1 LIKE '_张%' 有可能匹配到的是()。
A.张三
B.小张三
C.小张
D.都匹配不到
[单选题]sql语句 select * from A a,B b where a.bid = b.bid,查询结果等同于以下那条语句()。
A. select * from A a left join B b on a.bid = b.bid
B. select * from A a right join B b on a.bid = b.bid
C. select * from A a inner join B b on a.bid = b.bid
D. select * from A a inner join B b where a.bid = b.bid
[判断题]
The risk that arises from volatile changes in exchange rates is known as foreign exchange risk.()
A.正确
B.错误