对兑换的残缺、污损（）金融机构应当面使用专用袋密封保管，并在袋外封签上加盖“兑换”戳记。
A.人民币
B.外币
C.人民币纸币
D.人民币硬币
参考答案：D
I don't understand what your plan is exactly. Could you be a little more________? [ ]
A. special
B. particular
C. specific
D. typical
装配推力轴承时，一定要使紧环靠在静止零件的平面上。( )
