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In principle, the test point adopts circular surface pads with a diameter of 1.5 ~ 2mm.Let me explain the role of these classes: MySubject class is our main object, Observer1 and Observer2 are objects that depend on MySubject, and Observer1 and Observer2 must change when MySubject changes. The AbstractSubject class defines a list of objects to be monitored, which can be modified: add or delete monitored objects, and when MySubject changes, it is responsible for notifying the objects that exist in the list. Let's look at the implementation code:而张居正，虽然资历浅一些，却与裕王更为亲近，与朝中各派臣子，无论文武都相处融洽，此番裕皇登基，可以说亦是张居正一手推上去的。韩信笑着将刘邦的帛书递过去。凭什么？宋青书极为不忿。不老实不成，也不知这些人怎么弄的，她两腿软麻，根本提不起劲来。真真的好友王蒙蒙因爱车作了车模，接触到了一群飚车族。结识了天才车手张啸林，对他发动了感情攻势。而张啸林却偶然发现真真是真正坐自己车不害怕的女孩，发誓要搞定真真。 崔立伟将张啸林引入俱乐部后，开始了两人的竞争。但崔立伟因有不君子行为而被俱乐部开除。