单项选择题

A corps of so-called barefoot doctors are trained in hygiene, preventive medicine, acupuncture, and routine treatment of common diseases.

A．nutrition
B．sanitation
C．nursery
D．welfare
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单项选择题
The chief functions of direct-mail advertising are to familiarize prospective buyers with a product, its name, its maker, and its merits and with the product's local distributors.
A．potential
B．responsive
C．inquisitive
D．perceptive
单项选择题
The advertising industry has resorted to self-regulation in a serious effort to curtail not only bad taste but also misrepresentation and deception in copy and illustrations.
A．avert
B．deny
C．exclude
D．reduce
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