The series of action that illustrate his friendship with Donald include _______________.
A. plunging into the sea
B. flying across the Atlantic on an operation to help people in trouble or danger
C. abandoning the plane
D. saving each other from sharks
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The example of Jessica, his female friend, is mentioned in paragraph 4 in order to show ______________.
A. how much Jessica means to him
B. how differently he communicates with his female friend Jessica
C. he could be open, honest and transparent in expressing his caring feeling for females
D. it is natural to express his feelings to Jessica, but not to Donald
With the two examples of Donald and Jessica, the author realized ____________________.
A. he is not good at expressiong his feelings
B. the gender differences in his communication styles
C. he communicated with men and women in very different ways
D. every man has the difficulty expressing his feelings to his male friends
In the last paragraph, "nature" refers to __more than 2 words________________;"nurture" refers to _______more than 2 words__________________________
下列说法中不正确的是( )。
A. 当净现值大于零时,获利指数小于1
B. 当净现值大于零时,说明该方案可行
C. 当净现值为零时,说明此时的折现率为内部报酬率
D. 净现值是未来现金流量的总现值与初始投资额现值之差
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