【简答题】Generations of Americans have been brought up to believe that a good breakfast is one life’s essentials. Eating breakfast at the start of the day, we have all been told, and told again, is as necessar...
【简答题】Broken rubber bands and flat tires requiring replacement could soon be a thing of the past. French researchers have developed a new kind of rubber that can repair itself when broken.The new rubber is ...
【单选题】One day, drought may be a thing of the past, at least in any country not too far from the sea. Vast areas of desert throughout the world may for the first time come to life and provide millions of hec...
A.
much of desert has been changed into rich farmland already
B.
the problem of drought could easily be solved all over the world
C.
ice from the polar area may be used to solve the problem of drought
D.
it is possible to solve the problem of drought in many countries
【简答题】I’ve shopped online before, but I don’t do it very often. It’s true that shopping online is convenient, and that there is sometimes a better choice available, but I just don’t enjoy it so much. For me...