皮皮学，免费搜题
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【单选题】
Why do older students change their friendships?A.
They don’t like to be friends of the same race.
B.
They prefer to make friends with similar people.
C.
They become confused with their own identity.
D.
They want to be trusted and respected by friends.
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皮皮学刷刷变学霸
举一反三
【单选题】The painting was what it used to be because it was once watered by rain.
A.
something like
B.
nothing like
C.
anything like
D.
nothing at all
【多选题】用比重瓶法测定液体的相对密度时应注意( )
A.
供试品及水装瓶时，应小心沿瓶倒入，避免产生气泡
B.
比重瓶从水浴中取出时，应用手指拿瓶颈
C.
当室温高于 20 ℃ 时，应快速称重
D.
比重瓶应校正
E.
应将 20 ℃ 测得的供试品的相对密度除以 0.9982
【单选题】Painting was used by the ancient villagers to tell stories and record personal experiences； _____ it was religious.
A.
at most
B.
above all
C.
in effect
D.
in virtue
【单选题】在Word 2010中,若用户需要将一篇文章中的字符串“Internet”全部替换为字符串“因特网”,则可以在编辑菜单中选择( )命令。
A.
全选
B.
选择性粘贴
C.
定位
D.
替换
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