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【判断题】
每学期开学时,学生应当按学校规定办理注册手续。未请假或请假未准逾期两以上(含两)不注册的,视为放弃学籍,按自动退学处理。( )A.
正确
B.
错误
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【简答题】Where should guests change into their swimsuits before going swimming? In their ______.
【单选题】They are busy ______ in their lessons before the exam.
A.
going after
B.
going over
C.
going by
D.
going ahead
【简答题】What do prisoners do before going out? They have to ______.
【简答题】Before going shopping， Ruth cleans the house．28． Before going shopping， Ruth cleans the house．
【简答题】Before going to Japan，you need＿＿＿．
【单选题】粒子处于定态意味着 ( )
A.
粒子处于概率最大的状态
B.
粒子处于势能为零的状态
C.
粒子处于静止状态
D.
粒子的力学量平均值及概率密度分布都是与时间无关的状态
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