单项选择题

Stephen Schneider, a climatologist at Stanford, notes that unlike greenhouse gases, which ______ rapidly around the globe, the sulfate droplets tend to concentrate over industrialized regions.

A．unify
B．fragment
C．disperse
D．shatter
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单项选择题
In the search for solution to seemingly overwhelming problems, it became increasingly______ to include radical, even revolutionary ideas.
A．stable
B．absolute
C．immortal
D．plausible
单项选择题
The primordial fireball would have been a dense roiling stew of radiation and elementary particles condensing out of the ______ energy, annihilating each other, recondensing, then colliding and disappearing all over again.
A．colossal
B．audacious
C．ambient
D．autonomous
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