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South of the equator, 81 percent of the surface of the earth__ water.
A.is
B.are
C.was
D.were
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题目内容
（请给出正确答案）
A.is
B.are
C.was
D.were
答案
更多“South of the equator, 81 percent of the surface of the earth__ water.”相关的问题
第1题
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.
第3题
In Old South, New South, Gavin Wright believes that ______.
A．the more investment the more returns in the South.
B．labour unions get in the way of development of the North.
C．more experts came to the South because of its climate.
D．the legal environment plays a part in the development of the South.
第4题
A.south
B.southern
C.the south
D.the southern
第6题
Which is______, North America or South America？
A．biggest
B．the biggest
C．more bigger
D．bigger
第10题
There ______ salvage operations in position，south side of fairway at Fishhaven．
A.is
B.has
C.are
D.have
