n. the force that attracts objects in space towards each other, and that on the earth pulls them towards the centre of the planet, so that things fall to the ground when they are dropped
A. geometry
B. friction
C. gravity
D. framework
查看答案
n. a woman's dress, especially a long one for special occasions; a piece of clothing that is worn over other clothes to protect them, especially in a hospital
A. gown
B. grain
C. graph
D. grant
adj. having or showing a modest or low estimate of one's own importance
A. harden
B. hazard
C. identical
D. humble
n. A petroluem-derived liquid mixture, primarily used as fuel in internal combustion engines.
A. gasoline
B. guidance
C. fountain
D. gratitude
v.to look at sb/sth in an angry way
A. harden
B. gaze
C. glare
D. inhabit