问题
问答题 简答题
计算题：实测16×1mm的管材，已知模孔直径为15.83mm，请选择芯头直径。
答案
参考答案：
芯头直径=模孔直径-壁厚×2=15.83-1×2=13.83mm
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计算题：实测16×1mm的管材，已知模孔直径为15.83mm，请选择芯头直径。
参考答案：
芯头直径=模孔直径-壁厚×2=15.83-1×2=13.83mm
This is __1__ news for children in the countryside. We may still remember the girl __2__ big eyes. Her big eyes are __3_ us her dream: I wish to __4__! In China, there are still __5__ girls and boys like her. They want to go to school, but their _6_ are too poor. If the family has two or three children, parents __7_ send them all to school. So they often ask __8__ to stay at home, and boys to go to school. Now they needn’t __9__ the money. From 2006 on, children can go to school _10__ in poor areas. They don’t have to __11__ books and other things. Some of them can even get __12__ from the government（政府）to make their life better. Soon, __13__ children in the countryside can go to school for free. All families are very __14_ with the news. It is _15__ great.
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