单项选择题

Who does the author intend to write the passage for

A．TV buyers.
B．TV broadcasters.
C．TV manufacturers.
D．government officials regulating TV broadcasts.
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单项选择题
Human greenhouse gas emissions which cause low-lying places to disappear are mainly let out by
A．forest fires.
B．the industrialized nations.
C．people themselves in low-lying islands.
D．the developing countries.
单项选择题
Lack of meteorological and tidal research means, researchers have to depend on
A．measuring the output of coconut.
B．observing the erosion of foreshores.
C．collecting short interesting accounts concerning climate.
D．computer model on climate changes.
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