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【单选题】
关于三相点 , 下面的说法中正确的是 ( )A.
纯物质和多组分系统均有三相点
B.
三相点就是三条两相平衡线的交点
C.
三相点的温度可随压力改变
D.
三是纯物质的三个相平衡共存时的温度和压力所决定的
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】系统的频率特性为 ,则系统的传递函数为 , 幅频特性 ,相频特性为 。
【单选题】Which of the following parties in Scotland still wants an independent Scotland?
A.
The Labour Party
B.
The Liberal Party
C.
The Scottish National Party
D.
The Conservative Party
【单选题】Which of the following parties in Scotland still wants an independent Scotland?
A.
The Labour Party.
B.
The Liberal Party.
C.
The Scottish Nationalist Party.
D.
The Conservative Party.
【单选题】Which of the following parties in Scotland still wants an independent Scotland?
A.
The Labor Party.
B.
The Liberal Party.
C.
The Scottish Nationalist Party.
D.
The Conservative Party.
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