A．Chemists.B．Architects.C．Airline pilots.D．Auto designers.
A. Chemists.
B. Architects.
C. Airline pilots.
D. Auto designers.
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Compared to the tail of electrically charged atoms, the tail of neutral dust particles is
A. long
B. curved
C. unpredictable
D. bright
A．They're much larger than spiders.B．They're quite delicate.C．They have unusual ways o
A. They're much larger than spiders.
B. They're quite delicate.
C. They have unusual ways of gathering food.
D. They developed a long time before spiders.
A．That it can't be measured.B．That it doesn't change.C．That it's getting smaller.D．Tha
A. That it can't be measured.
B. That it doesn't change.
C. That it's getting smaller.
D. That it's rapidly increasing.
According to the passage, what is one difference between the hunting done by some humans and the hunting done by gray wolves？
A. Some humans hunt more frequently than gray wolves.
B. Gray wolves hunt in larger groups than some humans.
C. Some humans can hunt larger animals than gray wolves can hunt.
D. Some humans prey on animals of all ages, but gray wolves concentrate their efforts on young animals.
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