month motion ocean organisms parent
conditions daily day death differences
pattern boulder burning change
insect light liquid machine magnet
characteristics chart circular cloud
tree universe vibration water weather
seasonal shape similarities similarity
dinosaur dissolving distance diversity of
size teamwork temperature thermometer
prehistoric pulling pushing reasoning
life earth materials earth's rotation
energy food freezing gas gravity growth
size sky soil solid star states of matter
rock ruler salt science scientist
magnification magnifier mammoth mixture
straight-line motion sun's position sun's
pebble plant precipitation prediction
week weight zigzag machine magnet
air animal animals balance behavior
growth position habitat heat horsetail
速度 (字/分): 0 | 正确率 : 100%|时间: 01:00
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