填空题

The substance does not dissolve in water _____________________________ (不管是否加热)。

【参考答案】

whether (it is) heated or not
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单项选择题
A．Canada, Japan and Mexico.B．Japan, Canada and Asia.C．Japan, the European Union and Asia.D．Canada, Mexico and Europe.
A．Canada, Japan and Mexico.
B．Japan, Canada and Asia.
C．Japan, the European Union and Asia.
D．Canada, Mexico and Europe.
填空题
D
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