皮皮学，免费搜题
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【多选题】
下列哪几种现象属于力学的研究范畴?A.
行星绕太阳运动
B.
单摆的运动
C.
手机收发信号
D.
雨后天空出现彩虹
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】Be careful, Tom and Peter! Don't hurt _____. [ ]
A.
you
B.
yours
C.
yourself
D.
yourselves
【单选题】Peter has to be careful with ( ) .
A.
his taste buds
B.
the ice cream
C.
the factory machines
【单选题】Peter has to be careful with ______.
A.
his taste buds
B.
the ice ceam
C.
the factory machines
【单选题】Peter __________ a rich man today if he __________ more careful in the past.
A.
is ; had been
B.
was; were
C.
will be ; should be
D.
would be ; had been
【简答题】喹啉具有( )性和( )性,可以发生( )和( )反应。
【简答题】根据汉语意思完成句子。 1. 这件颜色鲜艳的裙子看起来很漂亮。 The _______ dress _______ beautiful. 2. 我对他所说的话很吃惊。 I'm _______ ______ what he said. 3. 我什么时候能拿到本月的杂志？ _______ can I get this _______ _______. 4. 他妈妈告诉他不要去河里游泳。 His mot...
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