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【单选题】
Carpeting may initially be less expensive than installing hardwood floors . While carpeting may look fantastic when it is first laid, in a relatively short period of time, it can become badly soiled. If the carpet is not cleaned regularly, these stains can permanently mar its beauty. Once this happens, the only recourse is to replace the stained carpet with a new one. In the end, then, hardwood flooring is a better buy than carpeting .A.
Carpeting may initially be less expensive than installing hardwood floors.
B.
If the carpet is not cleaned regularly, these stains can permanently mar its beauty.
C.
In the end, then, hardwood flooring is a better buy than carpeting.
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举一反三
【单选题】吉林市的市花是玫瑰花，在玫瑰花根尖成熟区表皮细胞中能正常完成的生理活动有（）①合成RNA聚合酶②核DNA→核DNA③mRNA→蛋白质④线粒体、叶绿体的DNA复制⑤逆转录过程⑥氨基酸脱水缩合
A.
①②⑤
B.
①②④⑤
C.
①③⑥
D.
②③④⑤
【简答题】腼腆的,羞怯的
【简答题】羞怯的,腼腆的
【单选题】下列关于“道德的功能”的有关表述不正确的是( )。
A.
道德的功能一般是指道德作为社会意识的特殊形式对社会发展具有的功效和能力
B.
道德的功能是多元的
C.
道德的功能是多层次的
D.
道德的功能是全方位的
参考解析：
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