题目内容

n. a machine for producing electricity;

A. generator
B. geometry
C. instruction
D. gratitude

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n. things that are produced to be sold

A. genius
B. grain
C. goods
D. gauge

n. a large important organization that has a particular purpose, for example, a university or bank

A. illustration
B. foundation
C. instant
D. institution

n. an animal like a large rabbit with very strong back legs, that can run very fast

A. hare
B. hatch
C. gauge
D. hatred

n. the action of one object or surface moving against another; the resistance of one surface to another surface or substance moving over or through it

A. gravity
B. friction
C. hydrogen
D. governor

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