高频真题 test39
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Food safety official:
All vegetables sold in Gratonia, whether produced in Gratonia or imported, have passed rigid tests ensuring that they are free of residues from those pesticides that have been shown to cause cancer in humans. Therefore, eating vegetables sold in Gratonia cannot expose people to residues of cancer-causing pesticides.
The food safety official’s argument depends on which of the following assumptions?
A
Of all vegetables tested for cancer-causing pesticides in Gratonia, those produced in Gratonia do not, on average, have higher pesticide-residue levels than do vegetables imported from abroad.
B
Before vegetables to be sold in Gratonia are tested for residues of cancer-causing pesticides, the vegetables are washed in a way that removes most pesticide residues.
C
Vegetables currently sold in Gratonia do not contain residues of pesticides that cause cancer in humans but have not been shown to be cancer-causing.
D
The tests used in Gratonia to ensure that vegetables are free of residues of cancer-causing pesticides are substantially more rigid than those used by other countries on vegetables that they export to Gratonia.
E
Chemical fertilizers and fungicides used in the production of vegetables sold in Gratonia do not expose people who eat the vegetables to significant risk of cancer.
Select one answer choice.
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1.未作答
正确答案
1.C
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