倾斜角度是指灯具轴线与水平线之间的夹角,倾斜角过大会增加眩光,也使人行道的亮度降低,一般倾斜角在()以下。
A、3
B、4
C、5
D、1
参考答案:C
-Jim should have been informed of the wedding place.
-________but he simply forgot about it.
A.So he had
B.So had he
C.So was he
D.So he was .
物质资料生产方式是()。
A.劳动资料与劳动对象的统一
B.地理环境与人口因素的统一
C.生产力与生产关系的统一
D.经济基础与上层建筑的统一