单项选择题

What is the main topic of the conversation

[A] The conversion of volcanic waste to fertilizer.
B. The menace of currently dormant volcanoes around Mount Saint Helena.
C. The eruption of Mount Saint Helena and its effects on the environment.
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单项选择题
This news story most probably appeared in a newspaper in ______.
A．1986
B．1987
C．1995
D．1997
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It can be inferred from the text that the teacher from Guangdong province ______.
A．felt proud of the gold medal winners
B．wondered if the students were honest
C．thought that the problems were too difficult for the students
D．believed that the twenty winners could go to study at university
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