It can be inferred from the text that the author believes that
A. nationwide application of anti-pollution devices can finally prevent cancer.
B. tough legislation is needed to set lower limits of worker exposure to harmful chemicals.
C. more research is required into the causes of cancer before further progress can be made.
D. industrialization must be slowed down to prevent further spread of cancer-causing agents.
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进境水果无输出国家或者地区政府动植物检疫机关签发的植物检疫证书的，或者未依法办理检疫审批手续，入境口岸所在地检验检疫机构可以根据具体情况，作退回或者销毁处理。
A. 正确
B. 错误
In Ethan Sims' study，the subjects were asked to
A. eat as much as they could．
B. battle their genetic inheritance．
C. stay in prison．
D. lower their weight．
企业将其按照销售商品、提供劳务相关的销售合同所产生的应收债权以不附有追索权的形式出售给银行等金融机构的，企业对此项应收债权不计提坏账准备。()
A. 正确
B. 错误
在财产清查中，一般地说，定期清查是全面清查，不定期清查是局部清查。()
A. 正确
B. 错误
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