Fuel cell engines (燃料电池发动机) are two to three times more efficient than combustion engines, meaning that much greater fue 点我阅读全文
The 1973 oil embargo and 1979 energy crisis caused a reorganization of energy policies around the world and brought rene 点我阅读全文
New energy vehicles are driven by the enery of ______. It is believed that they reduce our dependence on petroleum and m 点我阅读全文
We are more independent on electricity than we were generations ago so a failure of supply today can have major conseque 点我阅读全文
_____ is the first element on the periodic table, making it the lightest element. Since it is so light, it rises in the 点我阅读全文
Because the fuel cell is so much more efficient that the internal combustion engine, fueling a fuel cell car can cost ar 点我阅读全文
In a flame of pure hydrogen gas, burning in air, the hydrogen reacts with oxygen to form water and releases _______. A:l 点我阅读全文
The only products that come out of a fuel cell are _______. No pollution or other dirty byproducts come out of the tailp 点我阅读全文
______ is an energy form found in nature that has not been subjected to any human engineered conversion process. It is e 点我阅读全文
In the argument about the origin of oil, scientists should avoid letting ( ) prevent them from accepting the truth, 点我阅读全文
In order to reduce the consumption of coal , China has tried its best to invest in renewable energy and to adopt new tec 点我阅读全文
According to the report by EIA in 2018, the top three countries by oil production are ( ).A:the USA B:Russia C:Iran 点我阅读全文