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In Selecting a Service Provider, Consumers May Encounter Many Risks

question 20

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In selecting a service provider, consumers may encounter many risks.Which of the following services contains the highest level of risk?


Definitions:

Cyclohexene

A cyclic hydrocarbon with the formula C6H10, characterized by a single carbon-carbon double bond within a six-membered ring.

Crossed-aldol Product

A compound formed from the condensation reaction between two different aldehydes or ketones under basic or acidic conditions, leading to a β-hydroxyaldehyde or β-hydroxyketone.

Benzaldehyde

An organic compound consisting of a benzene ring with an aldehyde functional group; used as a precursor in the synthesis of various chemicals.

Butanal

An aldehyde with the formula C4H8O, characterized by a straight-chain four-carbon structure and a terminal carbonyl group.

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