听力原文: Lightning is a flow of electricity formed high above the earth.A single flash of lightning 1.6 kilometers long has enough electricity to light one million light bulbs. The American scientist and... A. Benjamin Franklin's life. B. Lightning electricity. C. The lightning rod. D. ...
well-mixed environments. After incubating co-cultures in the light on agar plates that have no added carbon, green colonies from the agar plate were picked into liquidCoBBG-11. Picked co-cultures were recovered in constant light for 2–5 days; wells with cyanobacterial growth were determined qu...