衡量土地需求程度的主要指标是（ ）指标。
A．人口老龄化
B．经济发展
C．国力发展
D．人口密度
参考答案：D
After Mr Gao stayed in America for two years, he could _____ wait to get home. [ ]
A. almost
B. hardly
C. nearly
D. seldom
双倍余额递减法计算折旧开始时须考虑预计的净残值。( )
