The earliest theoretical work on drama is Plato’s Poetics.

A、One possibility is that generalized latent inhibition is weaker than that produced by pre-exposure to the CS itself and thus is more susceptible to the effect of the long interval.

B、Nowadays the urinary symptoms are of a lesser order.

C、By analogy, it is possible to walk from one point in hilly country to another by a path which is always level or uphill, and yet a straight line between the points would cross a valley.

D、Cases have been reported where this would seem to have been the only possible method of transmission.

From the beginning rivers have played an important part in the life of man. Man of the earliest times used the rivers as a means of travel. Today rivers still serve as a great waterway for the transport and people.

In ancient times, man settled near rivers or on river banks and built up large empires.

Water is Nature's most precious gift to man. Man needs water to irrigate his crops, to cook and to wash. In nations all over the world rivers mean life and wealth. They feed and clothe the nations around them.

Water is also a source of energy and power. Man constructs huge dams across the river to control the water for irrigation and get the energy needed to drive generators. The electrical power is then directed to homes, cities, factories and television stations.

Man uses water each day. His main source of water comes from reservoirs, which in turn get their water from the rivers.

Rivers also bring down soil and minerals from the mountains and deposit them on the plains building up rich river deltas for raising plants and crops. Fresh water life in rivers or in lakes fed by them provide man with food.

In a small way rivers help to keep man in good health and provide for his amusements. Various forms of water sports keep man strong and healthy.

Rivers have run on this earth long before man. Man's future ability to live is uncertain, but rivers will flow on forever.

Rivers have been important to man ______.

A．since the last century

B．for a very long time

C．since a few hundred years ago

D．since a few years ago

A、Due to its lack of art

B、Due to its absurdism

C、Due to its criticism of the upper class

D、Due to its focus on prostitution

A、She is eventually forced to face up to the fact of being objectified.

B、She is disillusioned about Torvald Helmer.

C、She is a strong-willed and rebellious woman.

D、——