单词拼写 (共10小题，每小题1分，满分10分)

A.根据中文和首字母提示写出正确的单词形式:

1.Which team do you think will be the c______ (冠军) of the World Cup South Africa?

2.Dr Yuan has c______ (捐献) his money to the development of the super hybrid rice.

3.We were surprised to learn that our English teacher m______ (主修) in finance in university.

4.Everyone’s opinion is bound to be s______ (主观的).

5.I’d recognize your handwriting anywhere – it’s u______ (独特的).

A：条件(1)充分，但条件(2)不充分．
B：条件(2)充分，但条件(1)不充分．
C：条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．
D：条件(1)充分，条件(2)也充分．
E：条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．

两个相互独立的随机事件A和B至少发生一个的概率为

，则

．
(1)事件A发生而B不发生的概率为

；(2)事件A不发生而B发生的概率为

．