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【单选题】
下列关于农药说法有误的是( )A.
目前，农药广泛用于农业、林业的病、虫、草害控制上，一些农药又被称为杀虫剂。
B.
农药是一种特殊的生产资料，如不合理使用，可对环境及农产品产生污染，随着食物链的传递，将对非靶标生物甚至对人类健康产生危害。
C.
根据农药成分的来源，可分为矿物源农药（又叫无机农药）、有机合成农药、生物源农药、植物生长调节剂。
D.
农药通过降解、转化作用后所产生的一些产物对生态系统可能带来更大的危害。
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举一反三
【简答题】A．I have no cash on me. B．It's too expensive. C．That's 160 yuan. D．It is suitable for you.
【单选题】听力原文：How much is this skirt? (5)
A.
It's fashionable．
B.
It's too expensive.
C.
It's on sale．
D.
It's 50 dollars．
【简答题】就是将着火的区域与周围可燃物质隔开，中断可燃物的供给，使火灾不能蔓延。 [填空(1)]A. 隔离法
【简答题】A．It's too small. B．It has plenty of light. C．It's rather expensive. D．It doesn't have many closets.
【简答题】A．It's too expensive. B．It's too far away from home. C．The classes are too large. D．The students are not so friendly.
【简答题】A．It's too expensive. B．The neighborhood is noisy. C．It's located some distance from school. D．It isn't cozy.
【简答题】就是将着火的区域与周围可燃物质隔开,中断可燃物的供给,使火灾不能蔓延。
【简答题】A．It's too expensive. B．It would take too long. C．Nothing's worth seeing. D．He's been there before.
【单选题】What is the woman's opinion of the suit?
A.
It's not very attractive.
B.
It's too expensive.
C.
It's nice-looking.
D.
Its color is great.
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