问题
多项选择题
照明器的选择要考虑照明方式、光源种类、使用场所环境条件、安装方式、照度要求等综合因素,但主要从灯具的机械结构和光学特性方面选择,一般应注意()。
A.限制眩光
B.合理利用配光分布,提高照明效率
C.灯具的结构和规格要和光源配套
D.照明器要和环境条件相通应
答案
参考答案:A, B, C, D
照明器的选择要考虑照明方式、光源种类、使用场所环境条件、安装方式、照度要求等综合因素,但主要从灯具的机械结构和光学特性方面选择,一般应注意()。
A.限制眩光
B.合理利用配光分布,提高照明效率
C.灯具的结构和规格要和光源配套
D.照明器要和环境条件相通应
参考答案:A, B, C, D
完形填空。 | ||||
I ran into a stranger as he passed by. "I'm so sorry!" was my reply. Then he said, "Excuse me, too. I didn't even 1 you." We were very 2 , the stranger and I. Then we went on our way after saying 3 . But at home, a different 4 is told. How we treat our 5 ones, the young and the old. Later, in the kitchen, as I cooked our supper, my 6 entered, very still. When I turned, I nearly knocked her down." Get out of the way!" I 7 at her. She left, with her little heart broken. I didn't 8 how hard I'd spoken. The night, as I lay awake in bed, God' quiet voice 9 to me and said," While with strangers, you are polite, but with those you love, you didn't do it properly. Go and look right now on the 10 floor, you'll find some flowers there by the door. Those are the flowers she 11 for you. She picked them herself-pink, yellow and blue. By this time, I felt 12 and small and now my 13 fell. I quietly went to her bed, "Wake up, my dear daughter." I said."Are these flowers you picked for me? She smiled, "I found them under the tree.. I knew you'd like them, 14 the blue." I said,"I'm so 15 that I missed them today…. And I shouldn't have shouted at you that way." And she whispered,"Mommy, that's Ok. I still love you anyway." I hugged her and said," I love you, too and love your flowers, especially the blue. | ||||
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