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【单选题】Can trees talk Yes, but not in words. Scientists have reason to believe that trees do communicate with each other. Not long ago, researchers learned some surprising things. First, a willow tree attack...
A.
touching one another
B.
C.
B. smelling one another
D.
C. making unusual sounds
E.
D. making special movements
【多选题】肉类食品冷链过程中对冻猪肉的感官要求（ ）
A.
脂肪呈白色或乳白色，无霉点
B.
肌肉有光泽，红色或稍暗
C.
具有冻猪肉正常气味，无异味
D.
肉质紧密、坚实
E.
外表及切面湿润，不粘手