题目

下列各项中，属于相对性状的是（ ） A．人的身高与体重B．羊的白毛与长毛C．狗的长毛与兔的短毛D．兔的长毛与短毛 答案：DHe has some trouble ________ his classmates, but he has no trouble ________ doing his lesson. [　　] A．with, withB．in, in C．with, inD．in, with