单项选择题

A．She is applying for a student visa.
B．She is applying for financial aid.
C．She is running around the office.
D．She is offering the man advice.
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单项选择题
According to David Foote, what has helped the increase of new kinds of jobs
A．Network related science.
B．Risk management.
C．Social media.
D．Marketing.
单项选择题
Biotechnologists can help illnesses related to nutritional inadequacy by ______.
A．developing genetically modified or nutritionally improved crops
B．incorporating pest-resistant or virus-resistant genes into seeds of crops
C．improving the ability of seeds to resist water shortages in certain regions
D．identifying genes that helps neutralize aluminum toxicity in crops
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