この都市は、人口がかみつになっている。
A. 過密
B. 化密
C. 可密
D. 秘密
具有强度大，不易变形，密封性能较好等特点的法兰是( )。
A. 平焊法兰
B. 对焊法兰
C. 螺纹法兰
D. 铸钢法兰
Do you know the man ______ going to marry
A. with whom she is
B. who is she
C. who she is
For a material item to be classified as an extraordinary item on the income statement, the item must be: （）
A. current and unusual in frequency.
B. probable and infrequent in nature.
C. unusual in nature and infrequent in occurrence.
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