活接头是用()来连接2段公称直径相同的管子。
A、螺栓
B、气焊
C、铆接
D、电焊
参考答案:A
______ is a possibility that we shall not be able to afford the particular ______ we need.[ ]
A. It; furniture
B. There; furniture
C. There; furniture
D. It; furnitures
潇湘妃子指的是(林黛玉),蘅芜君指的是()。