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【简答题】
π 键的特点包括 、 和
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】A．That David is not a serious student. B．That David doesn't need to worry because he has a scholarship. C．That David won't speak with him. D．That David wants to move back to his home town.
【判断题】prefix="o" ns="urn:schemas-microsoft-com:office:office" 2、过一条直线的平面有无数多个; ?xml:namespace>
A.
正确
B.
错误
【单选题】Only when possible to settle the problem.
A.
our teacher comes will it be
B.
does our teacher comes will it be
C.
our teacher comes it will be
D.
has our teacher come will it be
【单选题】某酸在18℃时的平衡常数为1.84×10-5，在25℃时的平衡常数为1.87×10-6，则说明该酸（）。
A.
在18℃时溶解度比25℃时小
B.
酸的电离是一个放热过程
C.
温度高时电离度变大
D.
温度低时溶液中的氢离子浓度变大
【单选题】—Who is the man ________ was talking to our English teacher? —Oh! It’s Mr Baker, our math teacher.
A.
which
B.
that
C.
whom
【单选题】就货币的产生来说，完全正确的表述是
A.
金银天然是货币，但货币天然不是金银
B.
金银天然不是货币，但货币天然是金银
C.
金银天然是货币，货币天然是金银
D.
金银天然不是货币，货币天然不是金银
【单选题】Our English teacher is ______ our teacher; she is also our best friend.
A.
rather than
B.
other than
C.
more than
D.
less than
【简答题】A．That David is not a serious student. B．That David doesn't need to worry because he has a scholarship. C．That David won't speak with him. D．That David wants to move back to his home town.
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