问题
单项选择题
以不饱和聚酯为胶结料，加入石英砂，大理石渣，方解石粉等无机填料和颜料，经配制、混合搅拌、浇注成型、固化、烘干、抛光等工序而制成，这就是( )。
A．水泥型人造石材
B．聚酯型人造石材
C．复合型人造石材
D．烧结型人造石材
答案
参考答案：B
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以不饱和聚酯为胶结料，加入石英砂，大理石渣，方解石粉等无机填料和颜料，经配制、混合搅拌、浇注成型、固化、烘干、抛光等工序而制成，这就是( )。
A．水泥型人造石材
B．聚酯型人造石材
C．复合型人造石材
D．烧结型人造石材
参考答案：B
Last night I was driving from Harrisburg to Lewisburg, a distance of about 80 miles. It was late, I was late, and I was driving 31_________. At one point along an open highway, I came to a crossroads with a traffic light. I was 32_________ on the road by now, but as I came near the light, it turned 33_________, and I braked to a stop. I looked left, right, and behind me. Nothing. Not a car, no suggestion of headlights, 34_________ there I sat, waiting for the light to 35_________, the only human being, for at least a mile in any 36_________. I started wondering why I 37_________ to run the light. I was not afraid of being caught, because there was 38_________ no policeman anywhere around and there certainly would have been no 39_________ in going through it. Much later that 40_________, after I’d met with a group in Lewisburg and had climbed into bed near midnight, the question of why I’d stopped for that light 41_________ me. I think I stopped 42_________ it’s part of a contract(契约) we all have with each other. It’ s not only the law, but it’s an agreement we have, and we trust each other to follow 43_________: we don’t go through red lights. We do 44_________ we say we’ll do. We show up when we say we’ll show up. I was so 45_________ of myself for stopping for that red light. And as no one would ever have known what a good person I was on the road from Harrisburg to Lewisburg, I had to tell s someone.
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