we are more independent on electricity than we were generations ago so a failure of supply today can have major consequences.
geopolitics is closest to （ ）.
intercultural competence is the ability to understand and adapt to the target culture.
____ all the activities of learning one’s culture are called acculturation.
______ is an energy form found in nature that has not been subjected to any human engineered conversion process. it is energy contained in raw fuels, and other forms of energy received as input to a system.
hydropower systems build pressure either by containing the water behind a dam, or within a pipe that runs down a hill. the weight of the water behind the dam or in the pipe creates pressure at the bottom. more height creates more pressure, and more pressure means we can get more power from the flow of water.
the amount of _____ that drains into rivers and streams in a geographic area determines the amount of water available for producing hydropower.
飞行器按航向台信号在航道左方进近时，接收到音频的关系是（ ）。
中指点标距离跑道入口（ ）米。
electrolysis can use wind, solar, geothermal, fossil fuels, biomass, nuclear, and many other energy sources.
carbon footprints can not be reduced through（ ）.
the term dutch disease was coined in ( ) to explain a sharp decline in the dutch economy following their discovery of ( )in 1959.
（ ） is an example of initiali.
because the fuel cell is so much more efficient that the internal combustion engine, fueling a fuel cell car can cost around the same as fueling a gasoline car.