【简答题】When something terrible happens our friends, we often can't respond properly, We hurt their feelings by saying exactly what they don't want to hear; we stay away when they need. us; or if we do get i...
【单选题】What we don't know or refuse to recognize is that modern man has been altering his total environment so swiftly and suddenly that the whole 'great chain of life' on this planet is in danger. All of us...
A.
it is easy to do harm to our environment
B.
the planet on which man lives is too small for man to survive
C.
man should not create his culture and civilization too rapidly
D.
man does not want to admit the danger of what he has done to the environment