Teaching, a test of ___________, intelligence, and teamwork skills, requires a lot of energy.

[单选题]A generator is a machine to( )mechanical energy into electric energy.A.make

_of the buses in this area new energy.A. One three;usesB. One threes;useC. One t

[问答题]Riding bicycles can save energy.

[问答题]Riding bicycles can save energy.

[问答题]It is well known that coal is an important source of energy.

[单选题]Teaching,atestof__________,intelligence,andteamworkskills,requiresalotofene

5 We should move away from traditional energy sources, and begin to____cleaner f

One very（ ）serious problem is energy. We get a great （ ） of energy we need from

Scientists are trying to find more ______ ways to make full use of solar energy.

The project requires a lot of _ , so we need to hire more experts.A. expertiseB.