单项选择题

The tiny computer contained in the passports is supposed to be activated by______.

A．its internal power supply
B．its tiny antenna
C．a radio signal's wave
D．a specially designed reader
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单项选择题
One of the reasons that the left and the paraders are against the EU constitution is______.
A．the harmful effects brought to the economy
B．the threat to the fixed time limit of working
C．the losing of their property and freedom
D．the damages to the main France cities
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