题目内容

Monsanto developed Roundup, a glyphosate-based ___________ in the 1970s, and became a major producer of genetically engineered crops.

A. drug
B. herbicide
C. insecticide
D. antikiller

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In 2017, global area of biotech crops was ________ million hectares.

A. 185.8
B. 189.8
C. 191.8
D. 195.8

In2017, the areaofbiotechcrops in the US was________millionhectares.

A. 50.2
B. 60.2
C. 65.2
D. 70.0

In2017,theareaofbiotechcropsin Brazil was________millionhectares.

A. 40.2
B. 45.2
C. 50.2
D. 55.2

In2017,theareaofbiotechcropsin Argentina was________millionhectares.

A. 20.6
B. 23.6
C. 26.6
D. 30.6