运筹学模型获得解答后.还需试验改变模型及输入数据,考察其结果的变化,这种试验称为()试验
参考答案:敏感度
seems to be a strong competition for students to enter a key university.
A.It
B.There
C.What
D.That
AIDS病毒的遗传物质是()。