【简答题】A:I don't think I can go skiing with you tomorrow. I have to go to the library and do some research. B:Why don't you go in the morning?We could go skiing in the afternoon. A: Actually I could even go ...
【简答题】Everyone gets headaches sometimes. But how 1 do you know about headaches? What may cause(引起) 2 ? And what should we do if we have a headache? 3 should we go to see a doctor? A headache is not a diseas...
【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 er. 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 er of what he has done to the environment