描述居住面积与建筑总面积之比
A.居住建筑密度B.人口净密度C.人口毛密度D.居住系数E.建筑容积率
参考答案:D
计算:(﹣1)2+[20﹣(﹣2)3]÷(﹣4)
Look at _____ people. _____ they are having _____ football! [ ]
A. the; What a great time; playing
B. /; What great time; playing
C. the; How great time; to play
D. a; How wonderful time; to play