If you treble the distance, the gravitational attraction gets nine times weaker.
A. 如果将距离增大两倍，则其万有引力就减小九分之八。
B. 如果将距离增大两倍，则其万有引力就减小九分之七。
C. 如果将距离减小两倍，则其万有引力就减小九分之八。
D. 如果将距离减小两倍，则其万有引力就减小九分之七。
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The depth of water in the first tube is less than half that in the other.
A. 第一根试管内水的深度比另一根试管的深度浅一半多。
B. 第一根试管内水的深度比另一根试管的深度深一半多。
C. 第一根试管内水的深度比另一根试管的深度浅一倍多。
D. 第一根试管内水的深度比另一根试管的深度深一倍多。
I'll call back at a more_________time.
A. conveniently
B. inconvenient
C. convenience
D. convenient
It was very___________ situated just across the road from the City Reference Library...
A. conveniently
B. convenient
C. more convenient
D. convenience
The family thought it was more________ to eat in the kitchen.
A. convenience
B. conveniently
C. convenient
D. conveniented
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