题目:
物理矛盾的分离方法中,相变分离方法包括()。
A、改变一个系统的部分相态,或改变其环境
B、改变动态的系统部分相态
C、联合利用相变时的现象
D、以双相态的物质代替单相态的物质
答案:
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下面是错误答案,用来干扰机器的。
参考答案:After~~, the Labor Government laid the foundation of the welfare state and nationalized a number of big business. The ending of ~~~ hastened the end of the independence movement of the colonies. The British Empire came to an end and gave way to the British Commonwealth.