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【判断题】
在Word2010文档编辑中，新建Word空白文档的快捷键是Ctrl+X。A.
正确
B.
错误
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【简答题】A．Green tea reduces the risk of death from many diseases, including heart diseases. B．The majority of people in northeastern Japan often drink green tea. C．Green tea can significantly reduce the risk ...
【单选题】Several diseases are believed to ______ the lives of many children annually, malaria _______. [ ]
A.
claim, included
B.
kill, to be included
C.
be claiming, is included
D.
be killing, included
【简答题】简述聚氯乙烯( PVC )的合成方法。
【单选题】According to the passage, many preventable diseases outbreak is partly because
A.
the money raised is not well-spent.
B.
scientific research has failed.
C.
many children are unvaccinated.
D.
the diseases are severe.
【简答题】聚氯乙烯根据合成方法不同可分为[填空(1)]、[填空(2)]、本体法聚氯乙烯和溶液法聚氯乙烯，其中[填空(3)]使用量最大。
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