营林的生产成本通常是以（）的营林成本作为依据。
A.优等宜林地
B.劣等宜林地
C.中等宜林地
D.任意宜林地
参考答案：B
— May I have a look at ______ book tonight?
— Of course, you can. I have ______ old one at home. [ ]
A. the; a
B. a; the
C. the; an
D. the; the
有以下程序#includemain(){ int n=2,k=0;while(k++&&n++>2);Printf{“%d %d\n”,k,n};}程序运行后的输出结果是
A．0 2
B．1 3
C．5 7
D．1 2
