A. turn our attention to
B. lie down
C. speak for itself
D. keep on
One very( )serious problem is energy. We get a great ( ) of energy we need from
[单选题]A generator is a machine to( )mechanical energy into electric energy.A.make
[单选题]We can use energy from the sun because ______.
We should make every effort to use energy _ (efficient).题型说明根据括号里所给词的适当形式填空,每空2分
_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.
Others believe that chilies give you added energy. We cannot tell you these idea
[单选题]Teaching, a test of ___________, intelligence, and teamwork skills, require