问答题

羊肉GR值是代表（）含量的标志。

答案： (1)
胴体脂肪

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单项选择题

I didn’t hear ____ because there was too much noise where I was sitting. A.
what said B.
What he said C.
what did he say D.
What was he saying

基本杆组的自由度应为。
A. -1 B. 0 C. 1

答案： B或0或B. 0