The killer bees were brought to Brazil in order to ______.
A.make an African bee
B.kill the local bees
C.produce wild bees
D.develop a better bee
The African way of communication sent messages______.
A. in a special way
B. over a very short distance
C. by a musical instrument
D. at a rather slow speed
A.excess
B.SucCess
C.process
D.access
Which country's way of communication made use of visible signs?
A. French
B. Roman
C. African
D. American
What do we know about tsunami?
A.It is a scientific term for seaquakes.
B.It iS a Japanese name for true tides.
C.It is an African word for hurricanes.
D.It is a name of an unknown American scientist.
ir complex ecology, naming, classification, and mapping have also become more particular, stressing what was actually present rather than postulating about climatic potential.
[B] In regions of higher rainfall, such as eastern Africa, savanna vegetation is maintained by periodic fires. Consuming dry grass at the end of the rainy season, the fires burn back the forest vegetation, check the invasion of trees and shrubs, and stimulate new grass growth.
[C] Once, as with the scientific treatment of African soils, a much greater uniformity was attributed to the vegetation than would have been generally accepted in the same period for treatments of the lands of western Europe or the United States.
[D] The vegetational map of Africa and general vegetation groupings used here follow the White map and its extensive annotations.
[E] African vegetation zones are closely linked to climatic zones, with the same zones occurring both north and south of the equator in broadly similar patterns. As with climatic zones, differences in the amount and seasonal distribution of precipitation constitute the most important influence on the development of vegetation.
[F] Nevertheless, in broad terms, climate remains the dominant control over vegetation. Zonal belts of precipitation, reflection latitude and contrasting exposure to the Atlantic and Indian oceans and their currents, give some reality to related belts of vegetation.
[G] The span of human occupation in Africa is believed to exceed that of any other continent. All the resultant activities have tended, on balance, to reduce tree cover and increase grassland; but there has been considerable dispute among scholars concerning the natural versus human-caused development of most African grasslands at the regional level.
When the author says "You will miss smile" in paragraph two, he means______.
A. you will feel that Americans do not seem very friendly
B. you will be puzzled why Americans do not smile at you
C. you will fail to notice that Americans are pleasant and happy
D. you will find that Americans don't have much sense of humor
A.Holy
B.Majestic
C.Godly
D.Manifest
The postwar American housing style. largely reflected the Americans'______.
A.prosperity and growth
B.efficiency and practicality
C.restraint and confidence
D.pride and faithfulness
A.for
B.on
C.at
D.about