美国金塞提出的性取向的计分法中3分代表（）。
A.绝对异性恋
B.素质性同性恋
C.双性恋
D.自我不和谐同性恋
参考答案：C
— I promise to go shopping with you if you help me with the housework.
— _____.You are the last person to keep a promise. [ ]
A. That's great
B. Come off it
C. I don't agree
D. I don't believe so
钢按照S、P杂质含量多少分几个等级，每个等级S、P含量是多少？
