大白菜等叶菜类蔬菜,如果发生细菌性病害,除了用抗生素防治外,还可用什么制剂防治?

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问题:

大白菜等叶菜类蔬菜,如果发生细菌性病害,除了用抗生素防治外,还可用什么制剂防治?

考点:国家公务员农村党员干部科技致富知识农村党员干部科技致富知识题库
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The appeal of advertising to buying motives can have both negative and positive effects. Consumers may be convinced to buy a product of poor quality or high price because of an advertisement. For example, some advertisers have appealed to people’s desire for better fuel economy for their cars by advertising automotive products that improve gasoline mileage. Some of the products work. Others are worthless and a waste of consumers’ money.

Sometimes advertising is intentionally misleading. A few years ago, a brand of bread was offered to dieters (节食者) with the message that there were fewer calories (热量单位,卡路里) in every slice. It turned out that the bread was not dietetic (适合节食的), but just regular bread. There were fewer calories because it was sliced very thin, but there were the same number of calories in every loaf.

On the positive side, emotional appeals may respond to a consumer’s real concerns, considering fire insurance. Fire insurance may be sold by appealing to fear of loss. But fear of loss is the real reason for fire insurance. The security of knowing that property is protected by insurance makes the purchase of fire insurance a worthwhile investment for most people. If consumers consider the quality of the insurance plans as well as the message in the ads, they will benefit from the advertising.

Each consumer must evaluate her or his own situation. Are the benefits of the product important enough to justify buying it Advertising is intended to appeal to consumers, but it does not force them to buy the product. Consumers still control the final buying decision.

The reason why the bread advertisement is misleading is that()

A. thin slices of bread could contain more calories

B. the loaf was cut into regular slices

C. the bread was not genuine bread

D. the total number of calories in the loaf remained the same

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给下面划线的字注音,根据拼音写出汉字。

       对于广大的关东原野,我心里怀着(       )痛的热爱……我看见奔流似的马群,深夜háo(       )鸣的蒙古狗…… ——(选自《土地的誓言》)

       炽______    háo_______

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厌骨性肿瘤是指下述哪些()

A.皮肤癌

B.子宫癌

C.食道癌

D.乳癌

E.鼻咽癌

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斜探头的楔块应采用()的材料制成,它的功能是将()按给定的()斜射到工件表面,在界面发生折射,形成()或()或()在工件中传播

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经常迟到、早退或工作时间经常脱岗、溜岗、干私活,或经常消极怠工的,交友混乱的,经常出入高档消费场所的,大额资金炒股、购买 * * 的,给予经济处罚或其他处理;屡教不改的,下列哪项处理适用()

A.留用察看

B.辞退

C.记过

D.记大过

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