举一反三
- Increasing ionic strength would compress the electric double layer and increase the stability of the colloid。 （ ）
- Soil colloid has the following characteristics: A: large specific surface area B: small surface energy C: structure of double electrode layer D: coherency
- When determining the thickness of the compression layer in the same type of soil layer, the thickness of each layer should not be too large, generally not more than 0.4b (b is the width of the base) or 1 to 2m
- According to the DLVO theory, if electrolyte (coagulant) is dosed, concentration of ions having same charge with the counter-ions would _____; the electric double layer would be compressed; zeta potential _____; stability _____; thus, colloid coagulation would occur. A: decrease; decrease; decrease B: increase; decrease; decrease C: increase; decrease; increase D: increase; increase; increase
- Increasing ionic strength would compress the electric double layer and increase the stability of the colloid. A: 正确 B: 错误
内容
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The packaging, brand, quality and style of the material products belongs to ( ). A: core product layer B: potential product layer C: form product layer D: additional product layer
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Which of the following statements are right?( ) A: The sandy layer on top of sandy fields dissipates the soil heat into the atmosphere moreslowly. B: The sandy layer on top of sandy fields allows more rainfall to soak into the soil if it rains. C: The sandy layer on top of sandy fields slows water evaporation down if it doesn’t rain. D: The sandy layer on top of sandy fields absorbs the sun’s heat into the soil more slowly.
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A typical neutral network includes layer, hidden layers and output layer.
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People do not buy cosmetics to obtain some of its chemical components, but to obtain beauty, from this point of view, the beautification function that cosmetics product provide is a case of（ ）. A: Core product layer B: Potential product layer C: Form product layer D: Additional product layer
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The outer layer of the eyeball includes A: cornea B: retina C: chroid D: sclera