赞题库-背景图
单项选择题

Which of the following is NOT mentioned as civilian users of GPS

A．Hikers.
B．Bankers.
C．Fishermen.
D．Internet service providers.
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单项选择题What is the point the speaker is trying to make about technology development

A．A mature technology requires less innovation.
B．Technical evolution is close to maturation in certain fields.
C．New types of energy are expected to mature in the near future.
D．Nanomaterials or photonics and carbon nanotubes are environmentally friendly.

单项选择题Compared with this year, the estimated world oil growth for 2005 will__________.

A．be 84 million more barrels per day
B．increase by 2.5%
C．be up 2.53 million barrels per day
D．be up 1.8 million barrels per day