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【简答题】
在分子或离子 , 键角最大的是( ),最小的是( )
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【单选题】An artist has a small daughter. Sometimes he painted women without any clothes on, and he and his wife always tried to keep the small girl out when he was doing this, 'She is too young to understand',...
A.
who paints pictures
B.
who paints women with no clothes on
C.
who paints walls
D.
who paints buildings
【单选题】You see him under the sun, and under the moon and lights. He follows you wherever you go, but never says a word. Sometimes he is long. Sometimes he is short. Who is he?
A.
Your shadow
B.
Your shoes
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