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instruments
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单项选择题
A．Cancer.B．Heart disease.C．Organ transplant.D．Lung disease.
A．Cancer.
B．Heart disease.
C．Organ transplant.
D．Lung disease.
单项选择题
A．Floods often take place after earthquakes.B．Slides often take place after earthquakes.C．Slides do not often take place after earthquakes.D．Disasters often take place after earthquake.
A．Floods often take place after earthquakes.
B．Slides often take place after earthquakes.
C．Slides do not often take place after earthquakes.
D．Disasters often take place after earthquake.
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