目前，GB1499.2－2007对带肋钢筋的表面质量作了要求，包括（）。
A、钢筋应无有害的表面缺陷；
B、只要经钢丝刷刷过的试样的重量、尺寸横截面积和拉伸性能不低于本标准的要求，锈皮、表面不平衡或氧化铁皮不作为拒收的理由；
C、当带有B选项中规定的缺陷以外的表面缺陷的试样，不符合拉伸性能或弯曲性能要求时，则认为这些缺陷是有害的；
D、钢筋表面不得有花纹。
参考答案：A, B, C
In some cities, workaholism(工作狂)is so common that people don’t consider it unusual, they accept the lifestyle as ____11____. Government worker in Washington D.C, ____12___, frequently work sixty to seventy hours a week. They don’t do this because they have to; they do it because they ___13___to. Workaholism can be a ___14___problem. Because true workaholism would rather work than do anything else, they___15___have no idea of how to relax; that is, they might not ___16___movies, sports, or other types of entertainment. Most of all, they ___17___ to sit and do nothing. The lives of workaholics are usually stressful, and this tension (紧张) and worry can cause___18___problems such as heart attacks and stomach disease. ___19___, typical workaholics don’t pay much attention to their families. Their marriages may end in___20___ as they spend little time with their families. Is workaholism___21___dangerous? Perhaps not. There are, certainly, people who work ___22___under stress. Some studies show that many workaholics have great energy and interest in work. They feel ___23___ is so pleasurable that they are actually very happy. For most workaholics, work and entertainment are the same thing. Their jobs___24___them with challenge; this keeps them busy and creative. Why do workaholics enjoy their jobs so much? There are several factors to work. Of course, it provides people with paychecks. But it offers more than financial security. It provides people with self-confidence; they have a feeling of satisfaction ___25___ they have produced a challenging piece of work.
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