What is the main idea of the text A: organically grown foods are nutritious. B: how to buy organically grown foods. C: what does organically grown foods mean D: a general standard should be established to regulate the organically grown produce.
What is the main idea of the text A: organically grown foods are nutritious. B: how to buy organically grown foods. C: what does organically grown foods mean D: a general standard should be established to regulate the organically grown produce.
mini-talk 2 A: Organic farming can reduce soil erosion. B: Organic crops produce lower yields. C: Organically grown food tastes strange. D: Organic farming is better for the environment.
mini-talk 2 A: Organic farming can reduce soil erosion. B: Organic crops produce lower yields. C: Organically grown food tastes strange. D: Organic farming is better for the environment.
What are the most important reasons for using water fog to fight fires?（） A: Smothers burning surfaces，organically destroys fuel B: Cools fire and adjacent surfaces，provides protective barrier C: Reaches areas not protected by steam or CO<sub>2</sub> smothering systems D: Allows fire to be attacked from leeward，saturates liquid surface
What are the most important reasons for using water fog to fight fires?（） A: Smothers burning surfaces，organically destroys fuel B: Cools fire and adjacent surfaces，provides protective barrier C: Reaches areas not protected by steam or CO<sub>2</sub> smothering systems D: Allows fire to be attacked from leeward，saturates liquid surface