As a result of running high temperature this summer in the south of China, the corn crop declined sharply. If corn growers experienced an increase in sales revenue, the demand for corn must be ( ) A: price elastic. B: price inelastic. C: unitary elastic. D: perfectly inelastic.

A few sellers may behave as if they operate in a perfectly competitive market if the market demand is: A: highly inelastic. B: very elastic. C: unitary elastic. D: composed of many small buyers.

If the supply of land were perfectly inelastic, a tax on land would be paid: A: partly by sellers and partly by buyers. B: entirely by sellers. C: entirely by buyers. D: It is impossible to determine given this information.

() are<br/>real assets. A: Land B: a<br/>fixed level of income for the life of the owner. C: Machines D: a<br/>variable level of income for owners on a fixed income. E: Stocks<br/>and bonds F: a<br/>fixed or variable income stream at the option of the owner. G: Knowledge H: a<br/>fixed stream of income or a stream of income that is determined<br/>according to a<br/>specified<br/>formula for the life of the security. I: Land,<br/>machines, and knowledge<br/>A<br/>debt security pays (D)

The<br/>activity of the autonomic nervous system can mainly affect ( ) A: Viscous<br/>resistance B: Inertial<br/>resistance C: Airway<br/>resistance D: Pulmonary<br/>elastic resistance E: Thoracic<br/>elastic resistance