超星 - Test 18 - 查题吧

单选题

In2017,theareaofbiotechcropsinChina was________millionhectares.

A. 1.2
B. 1.8
C. 2.3
D. 2.8

单选题

In2017,theareaofbiotechcropsin India was________millionhectares.

A. 9.4
B. 11.4
C. 13.4
D. 16.4

单选题

In2017,theareaofbiotechcropsin Australia was________millionhectares.

A. 0.4
B. 0.6
C. 0.9
D. 1.4

单选题

In April _______, a white button mushroom (Agaricus bisporus) modified using the CRISPR technique received de facto approval in the United States, after the USDA said it would not have to go through the agency's regulatory process.

A. 2013
B. 2014
C. 2016
D. 2018

单选题

Palmer amaranth is a weed that competes with cotton. A native of the southwestern US, it traveled east and was first found resistant to glyphosate in 2006, less than ____ years after GM cotton was introduced.

A. 6
B. 8
C. 10
D. 12

单选题

The first genetically modified food approved for release was the Flavr Savr tomato in ______, which was developed by Calgene. It was engineered to have a longer shelf life by inserting an antisense gene that delayed ripening.

A. 1990
B. 1992
C. 1994
D. 1998

单选题

With the creation of golden rice in _______, scientists had genetically modified food to increase its nutrient value for the first time.

A. 1996
B. 2000
C. 2004
D. 2007

单选题

_________wasthefirstcountrytocommercializeatransgeniccropin1993withtheintroductionofvirus-resistanttobacco.

A. The USA
B. China
C. Brazil
D. India

单选题

In1995,Bacillusthuringiensis(Bt)Potatowasapprovedforcultivation,makingitthefirstpesticideproducingcroptobeapprovedin_________.

A. China
B. theUSA
C. theUK
D. Canada

单选题

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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