题目内容

By 2010, ____ countries had planted commercialized biotech crops and a further 31 countries had granted regulatory approval for transgenic crops to be imported.

A. 20
B. 23
C. 25
D. 29

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In 2015, 92% of corn, 94% of soybeans, and _______ of cotton produced in the US were genetically modified strains.

A. 90%
B. 92%
C. 94%
D. 96%

According to a survery in consumers in 2018, ________ of Chinese had a negative view on GM food.

A. 42.7%
B. 44.7%
C. 46.7%
D. 50.7%

Accordingtoasurveryinconsumersin2018, only ________ofChinesehada positiveviewonGMfood.

A. 8.9%
B. 11.9%
C. 15.9%
D. 20.9%

Accordingtoasurveryinconsumersin2018, ________ofChinesehada neutral viewonGMfood.

A. 21.4%
B. 31.4%
C. 41.4%
D. 51.4%