单项选择题

Farmers can save a considerable amount of pesticide by ______.

A．resorting to spot-spraying
B．consulting infrared scanning experts
C．transforming poisoned rain
D．detecting crop problems at an early date
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单项选择题
The example of an Avril Lavigne phone is given to illustrate that ______.
A．the new wireless phone has a bigger memory than the average one
B．music-loving,fashionable teenagers are its target customers
C．the functions of current mobile phones are very changeable
D．its price is not very high concerning its various functions
单项选择题
Which of the following statements is TRUE
A．The wireless phone is expected to change its way of selling products.
B．The annual sales of cellphone will amount to US $1 billion in 2004.
C．Avril Lavigne phone will be popular throughout the world quickly.
D．Curitel hopes that the handsets will use the GSM phone network.
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