英语三级A级
A.it can only be used to give orders
B.it is not natural for both shepherd and sheepdog
C.it is a one-way communication approach
D.it can only be used between man and dog
【考点】推理题
【解析】题干意为“作者暗示牧羊人和牧羊犬之间的口哨始终是带有倾向的,原因是…”。由第一段最后一句“Its only fault lies in fact that the bias is still there the dog cannot whistle for the man.”可以看出,这种倾向 在于狗不能对人使用口哨,这只是一个单方向的交流方法,故选C。
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