Which of the following is NOT the difference between Bt cotton and common cotton A: Bt cotton is stronger than common cotton. B: Bt cotton yields more than common cotton. C: Bt cotton needs less pesticides than common cotton. D: Bt cotton is harm to cotton bollworms.

The first step of producing hand-made cotton cloth is to twine and spin the cotton.

Which of the following would unambiguously cause a decrease in the equilibrium price of cotton shirts? ( ) A: an increase in the price of wool shirts and a decrease in the price of raw cotton B: a decrease in the price of wool shirts and a decrease in the price of raw cotton. C: an increase in the price of wool shirts and an increase in the price of raw cotton. D: a decrease in the price of wool shirts and an increase in the price of raw cotton.

The cloth is made ___________cotton.

We sew a button with a needle and cotton.

Which of the following call be inferred from the passage about cotton production in the United States after the introduction of Whitney's cotton gin（） A: More cotton came from sea island cotton plants than befor B: More cotton came from short-staple cotton plants than befor C: Most cotton produced was sold domesticall D: Most cotton produced was exported to Englan

"Organic cotton" in Para. 3, probably means "cotton ______".

We have produced ______this year as we did in 1993. A: as much cotton twice B: as twice much cotton C: much as twice cotton D: twice as much cotton

We produced ______ we did two years ago. A: double as much cotton as this year B: twice as much cotton this year as C: this year twice cotton as much as D: twice as this year much cotton as

We all surprise that Mike, the well-known miser, should buy his girlfriend ____ dress. A: an expensive white cotton B: a cotton expensive white C: a cotton white expensive D: a white expensive cotton