MySQL中，查询所有学生的sno和name的SQL语句是（）。
（A）select sno name from student
（B）select sno,name from student
（C）select sno+name from student
（D）select sno and name from student
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（A）select sno name from student
（B）select sno,name from student
（C）select sno+name from student
（D）select sno and name from student
