对接焊缝和角焊缝应分别进行焊接工艺评定。（）
参考答案：错
Would you like ______ cup of tea?[ ]
A. other
B. another
C. the other
D. the others
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
A.MF/HF
B.SART
C.EPIRB
D.any of A, B, C
