第一步：学习cad制图基础课程 -和记娱乐网站

[{"itemtype":"chapter","number":"1","published_number":0,"title":"cad\u57fa\u7840","result":"","resultstatus":"","lock":"","status":"published","taskid":"20","isoptional":"0","type":"chapter","istaskfree":"","watchlimitremaining":false,"replaystatus":"","activitystarttimestr":"","activitystarttime":"","activitylength":"","activityendtime":"","filestorage":"","istasktrylookable":"","issingletasklesson":false},{"itemtype":"task","number":"1","published_number":"1","title":"1.cad\u57fa\u7840\u4e00","result":"","resultstatus":"","lock":false,"status":"published","taskid":"19","isoptional":"0","type":"text","istaskfree":"1","watchlimitremaining":false,"replaystatus":"","activitystarttimestr":"","activitystarttime":"","activitylength":"","activityendtime":"","filestorage":"","istasktrylookable":0,"issingletasklesson":true},{"itemtype":"task","number":"2","published_number":"2","title":"2.cad\u57fa\u7840\u4e8c","result":"","resultstatus":"","lock":false,"status":"published","taskid":"38","isoptional":"0","type":"text","istaskfree":"1","watchlimitremaining":false,"replaystatus":"","activitystarttimestr":"","activitystarttime":"","activitylength":"","activityendtime":"","filestorage":"","istasktrylookable":0,"issingletasklesson":true},{"itemtype":"task","number":"3","published_number":"3","title":"3. cad\u56fe\u7eb8\u7684\u7ed8\u5236","result":"","resultstatus":"","lock":false,"status":"published","taskid":"39","isoptional":"0","type":"text","istaskfree":"0","watchlimitremaining":false,"replaystatus":"","activitystarttimestr":"","activitystarttime":"","activitylength":"","activityendtime":"","filestorage":"","istasktrylookable":0,"issingletasklesson":true},{"itemtype":"task","number":"4","published_number":"4","title":"3.3 cad\u56fe\u7eb8\u7684\u7ed8\u5236-\u5b9e\u64cd","result":"","resultstatus":"","lock":false,"status":"published","taskid":"40","isoptional":"0","type":"text","istaskfree":"0","watchlimitremaining":false,"replaystatus":"","activitystarttimestr":"","activitystarttime":"","activitylength":"","activityendtime":"","filestorage":"","istasktrylookable":0,"issingletasklesson":true},{"itemtype":"task","number":"5","published_number":"5","title":"\u4f5c\u4e1a1\uff1a\u5c06\u56fe\u7247\u5185\u5bb9\u7528cad\u753b\u51fa\u6765","result":"","resultstatus":"","lock":false,"status":"published","taskid":"44","isoptional":"0","type":"homework","istaskfree":"0","watchlimitremaining":false,"replaystatus":"","activitystarttimestr":"","activitystarttime":"","activitylength":"","activityendtime":"","filestorage":"","istasktrylookable":0,"issingletasklesson":true},{"itemtype":"task","number":"6","published_number":"6","title":"\u4f5c\u4e1a2\uff1a\u5c06\u56fe\u7247\u5185\u5bb9\u7528cad\u753b\u51fa\u6765","result":"","resultstatus":"","lock":false,"status":"published","taskid":"47","isoptional":"0","type":"homework","istaskfree":"0","watchlimitremaining":false,"replaystatus":"","activitystarttimestr":"","activitystarttime":"","activitylength":"","activityendtime":"","filestorage":"","istasktrylookable":0,"issingletasklesson":true}]