单项选择题

What is one of the biggest challenges facing employers and educators today（）

A．The fierce competition in the market.
B．The growing necessity of staff training.
C．The accelerated pace of globalisation.
D．The urgent need of a diverse workforce.

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单项选择题

What did Wilma Subra do as part of her job while working at Gulf South Research Institute（）

A．She taught chemistry and microbiology courses in a college.
B．She gave lectures on how to become a public speaker.
C． She helped families move away from industrial polluters.
D．She engaged in field research on environmental pollution.

单项选择题

What problem does Alberto say Brazil faces now（）

A．The lack of overall urban planning.
B．The huge gap between the haves and have-nots.
C．The inadequate supply of water and electricity.
D．The shortage of hi-tech personnel.