[填空题]Waterlogged fields and coastal sand storms make people in parts of Guangdong Province introduce the "dam-pond system" to raise fish in the pond and grow vegetables on tops of the dam around the pond.

[填空题]Waterlogged fields and coastal sand storms make people in parts of Guangdong Province introduce the "dam-pond system" to raise fish in the pond and grow vegetables on tops of the dam around the pond.

[填空题]fields

[单项选择] What Are Tropical Storms Severe storms spawned in the tropics are known by different names in different parts of the world: hurricanes in the Atlantic and east Pacific and typhoons in the northwest Pacific and cyclones in the southwest Pacific and Indian Ocean. These storms originate over tropical waters, close to the equator. If the atmosphere is calm and the water is warmer than about 27°C, evaporation forces large amounts of moisture into the air, creating a low pressure system. When this water vapor condenses, it releases heat that powers the circular winds that characterize these storms. Rainfall in the developing storm releases more heat, triggering a convection process that pulls more moisture-laden air up through the centre of the system. The storm grows via this feedback mechanism. The strongest winds are found immediately outside the centre, or "eye," of the hurricane at ground level. Every one of these systems begins as a trop
A. Y
B. N
C. NG

[简答题]part 1Friend Do you like to make friends with people What kind of friend do you like Talk about a interesting experience of making a friend. Do you need a long time to know a person