题目内容

4.特征替代,是指同地分布的近缘种之间的差异往往比异地分布时所表现的差异小。

A. 对
B. 错

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American fell in 2012 to its level in 4 years.

One reason for the is .

The IMF that thehasn’t yet.

下列函数参数默认值定义错误的是()。

A. f(int x, int y = 0);
B. f(int x = 100);
C. f(int x = 0, int y);
D. f(int x = g()); //(假定函数g已经定义)

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