VOA慢速英语2012.05.06 finding, called, research, 英语, 杀虫剂

Rebecca949

New research suggests that a commonly used group of insecticides could cause bees to have a hard time finding their way back to their hive. The new research looks at the use of pesticides called neonicotinoids. 新研究发现，一类常用的杀虫剂可能会使蜜蜂很难找到回蜂巢的路。这项研究调查了一种名为新烟碱的杀虫剂的使用情况。
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gqinchunh123

听听听

AnnStone

They were first used in the 1990s. They are now put on the seeds of many majoy crops around the world. The seeds absorb the chemical as they grow.

dentist

They were first used in the 1990s.They are now put on the seeds of many major crops around the world .The seedlings absorbed the chemical as they grow

3D小王

New research