Advanced technologies can do all of the following EXCEPT that ______.
A: they can find oil deeper in the ground
B: they can increase mining efficiency
C: they can cultivate microorganisms that produce oil
D: they can delay peak oil production
A: they can find oil deeper in the ground
B: they can increase mining efficiency
C: they can cultivate microorganisms that produce oil
D: they can delay peak oil production
举一反三
- Oil can be conveyed by pipeline from an oil region to a refinery.
- In one day, Sue can change the oil on 20 cars or change the tires on 20 cars. In one day, Fred can change the oil on 20 cars or change the tires on 10 cars. Sue and Fred can gain from trade if Sue changes the ( ) and Fred changes the ( ). A: tires; oil B: oil; oil C: oil; tires D: tires; tires
- Dolphins once were hunted for money because______. A: they are rare and precious animals B: valuable oil can be obtained form their head C: they can produce oil for lubrication D: they are able to utter sounds worth study
- _____ is arranged for cleaning the lubricating oil in the system and clean oil can be provided from a storage tank.
- In engines with system, the lubricating oil can be added to the engine through the filling hole in the crankcase cover, by using a hand oil can, or through the separator pipe（） A: lubricating oil B: dry sump C: circulated tank D: wet sum