What are the main selection of equipment in the fully mechanized working face? ( ) A: Selection of fully mechanized support B: Selection of Shearer C: Selection of face conveyor D: Selection of conveyor in gateway

selection

The basis of selection is ( ).

public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) { //先匹配URI switch (){ case 1: //查询返回所有数据，集合，第一个null表示是否分组group by，第二个null表示是否分组后过滤having return db.query("tb_person",projection,selection, selectionArgs,null,null,sortOrder); case 2: //查询返回单行数据，哪个单行，必须得到ID long id= ; String where="_id="+id; //判断方法有没有传来别的查询条件 if(null!=selection&&!"".equals(selection)){ where=selection+" and "+where;//连接多个查询条件 } return db.query(" ",projection,where, selectionArgs,null,null,sortOrder); default: throw new IllegalArgumentException("不知名的Uri:"+uri); } }

歧化选择（disruptive selection）

The criteria for selection of details in a narrative are _______.

Seat Selection 座位选择

选择工具（Selection Tool）快捷键

There is a wide and selection of ice cream.(vary)

The concept of adverse selection helps to explain _________