ddr3和ddr4插槽一样吗:The best part of a week是什么意思？

The best part of a week是什么意思？ what letter is a part of the face The advantage and disadvantage of doing a part-time job The advantage and disadvantage of a part-time job What letter is a part of the head? He spent the major part of a year abroad. a part of 和great part of a large part of part of a fool the best way of learning a language ___(use) it