To supplement high school AP-prep classes, the Web site compiles material relevant to all three subjects, including video clips, exam questions, and practice problems.
作为对原有内容的补充，课程计划网站编辑整理了诸如视频剪辑、考试真题和练习题等与这三科相关的内容。
The child receives a message saying that the handet's position has been requested, and the parents receive an address, or a marker on a web-based ap, giving the child's location.
孩子会收到一条“该手机的位置被要求发送”的信息，父母则收到一个地址，或是网络地图上的一个标记，指示出孩子的位置。
AP: Spring Web Services has a couple of unique features.
AP：SpringWebServices有几个独特的特性。
AP: Spring Web Services has a couple of unique features.
AP：SpringWebServices有几个独特的特性。
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