单项选择题


Questions 22 to 25 are based on the conversation you have just heard.

A．He wonders if he has enough time for the job.
B．He is afraid he is not experienced enough.
C．He is afraid that the job may be boring.
D．He thinks Professor Jamison has chosen one.
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单项选择题
A．To reduce half of the number of people who lack safe drinking water by 2015.B．To maintain sustainable development of South Africa till 2015.C．To release a report on water development and water problems in the world.D．To arouse political desire to meet future water demands.
A．To reduce half of the number of people who lack safe drinking water by 2015.
B．To maintain sustainable development of South Africa till 2015.
C．To release a report on water development and water problems in the world.
D．To arouse political desire to meet future water demands.
单项选择题
Sharks eat their food by ______
A．sucking
B．grinding
C．chewing
D．swallowing
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