单词:bacteriotrophic
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The Mysterious Honeybee Disappearance 神秘的蜂群消失事件 by Rebecca A. Fratzke Honeybees are used to help many crops flower and grow. Thus, they play an extremely important _(1)_ in agriculture. However, since 2006, beekeepers in the US have
AMERICAN MOSAIC - Whitehouse.gov / Question About America's Longest River / Music by Vivian Green By Nancy Steinbach Broadcast: December 27, 2002 (THEME) HOST: Welcome to AMERICAN MOSAIC --VOA’s rad
By Mike O'Sullivan Los Angeles 27 March 2006 A museum in Los Angeles is bringing to life the people who lived in northern Europe thousands of years ago. Well-preserved bodies and artifacts from fog-sh
Oh, no! Denzel thought. Whered THAT come from? He was looking at a big red dry stain that was on the carport where he always parked his car. There was only one thing to do: check his power steering fluid and his transmission fluid, both of which were
Todd: Hello, I'm here with Frederick. Now frederick, you went to university in Canada? Fred: That's right, Todd. Todd: OK, and you have very strong views about universities in Canada. Can you please explain? Fred: OK, well, let me just give you a gen
Since the April 20 explosion and fire that sank the BP Deepwater Horizon off-shore oil rig, about 800,000 liters of crude oil a day have been spewing from the broken well into the Gulf of Mexico. The massive spill is threatening marine life, commerci