文档介绍：C
When it comes to friends，I desire those who will share my happiness，who possess wings of their own and who will fly skills
C．learn from her classmates at school D．share poems and stories with other classmates
64．In Paragraph 3，“We gave London to each other” probably means ．
A．our exploration of London was a memorable gift to both of us
B．we were unwilling to tear ourselves away from London
C．our unpleasant feeling about London disappeared
D．we parted with each other in London
65．According to Paragraph 4，the author and her friend ．
A．call each other regularly B．have different personalities
C．enjoy writing to each other D．dream of meeting each other
66．In the darkest moments，the author would prefer to ．
A．seek professional help B．be left alone
C．stay with her best friend D．break the silence
D
Being a man has always been dangerous. There are about 105 males for every 100 females, but this ratio(比率) drops to near balance at the age of maturity(成熟期), and among 70-year-olds there are twice as many women as men. But this situation is being changed. Now, boy babies survive almost as well as girls do. This means that, for the first time, there will be an excess(过多) of boys in those years when they are searching for a mate. More important, another chance for natural selection has been removed. Fifty years ago, the chance of a