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当前学科：制氧中级工
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工件用四爪单动卡盘和中心架装夹，磨削时发现工件向右窜动，说明中心架（）。
Talking to Kids about SARS School age children may be learning about SARS from adults and the media, but may not know what to make of the situation, says a national health charity. The Lung Association says parents should take time to talk to their ____1____ and explain the facts about SARS and how to avoid the illness. The following is based on recommendations ____2____ Thursday by the Lung Association: Ask your children if they have heard ____3____ SARS at school, from friends, from TV, etc. Finding out what they already know can be a good ____4____ to start the conversation and to clear away any wrong ideas they might have about the illness and how it is spread. School age children are usually old ____5____ to understand concepts such as getting sick from germs and how to avoid illness. A simple reminder ____6____ to cough on people and to wash their hands often may be sufficient for younger kids. All children should be shown how to ____7____ their hands properly. Remember to keep it simple so ____8____ not to overwhelm children with information, but answer them truthfully. Kids can tell when you're not being honest or if your're hiding something, and sometimes the unknown can be more frightening than the ____9____ . Parents with anxious children will know how their kids will handle information on SARS and can tailor their discussion accordingly. One way to explain the illness is to tell children that SARS is like a bad breathing problem. It is ____10____ from a cold, but people can catch it in the same ways—such as coughing on someone, not washing your hands or sharing a glass with a sick person. ___5___内选项为（）
五行中具有"润下"特性的是（）
不属于按环境要素对环境质量评价分类的是（）。
有一位内部审计人员，在专业知识方面很突出，并且与被审计部门的关系也很好，但是这位审计人员却不适合领导审计小组。为了有所突破，这位内部审计人员应当怎么做？（）
关于生物半衰期的叙述正确的是（）
DCS在生产过程中正常运行不需要维护，对吗？
关于行政法的特征说法错误的是()。
下列药物可引发药物性牙龈增生，但不包括（）
加工中心的突出特征是设置有（）。这是它与数控铣床、数控镗床等机床的主要要区别。