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【单选题】
A customer with IPCC Express Standard reports that a script using the Database steps is not working. What is the most likely root cause?（）A.
The script probably has an error in the DSN configuration.
B.
IPCC Express Standard is not licensed for Database steps.
C.
The script probably has an error in the query string.
D.
There is probably an interoperability problem between IPCC Express and the database.
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【单选题】虽然世界因发明而辉煌,但发明家个体仍常常寂寞地在逆境中奋斗。市场只认同具有直接消费价值的产品,很少有人会为发明家的理想“买单”。世界上有职业的教师和科学家,因为人们认识到教育和科学对人类的重要性,教师和科学家可以衣食无忧地培育学生,探究宇宙;然而,世界上没有“发明家”这种职业,也没有人付给发明家薪水。 这段文字主要想表达的是:( )
A.
世界的发展进步离不开发明
B.
发明家比科学家等处境艰难
C.
社会应对发明家提供更多保障
D.
发明通常不具有直接消费价值
【单选题】虽然世界因发明而辉煌，但发明家个体仍常常寂寞地在逆境中奋斗。市场只认同具有直接消费价值的产品，很少有人会为发明家的理想“埋单”。世界上有职业的教师和科学家，因为人们认识到教育和科学对人类的重要性，教师和科学家可以衣食无忧地培育学生，探究宇宙；然而，世界上没有“发明家”这种职业，也没有人付给发明家薪水。这段文字主要想表达的是（）。
A.
世界的发展进步离不开发明
B.
发明家比科学家等处境艰难
C.
发明通常不具有直接消费价值
D.
社会应对发明家提供更多保障
【单选题】They are said______each other long time before they met in Harvard University where they worked together on a research project.
A.
to know
B.
to have known
C.
knowing
D.
having known
【简答题】Recently I paid a visit to Harvard University, where there are top class scientists and professors and the best academic system in the world. I was pretty shocked when I first stepped onto the campus....
【简答题】Recently I paid a visit to Harvard University, where there are top class scientists and professors and the best academic(学术的)system in the world. I was pretty shocked when I first stepped onto the cam...
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