彩色鱼夹因为是用动物性原料作为夹片的，所以不属于夹的组配方法。( )
参考答案：错
解析：作为夹片的原料可以是动物性原料，彩色鱼夹属于夹的组配方法。
. Although I liked the appearance of the house, what really made me decide to buy it was the beautiful _______ from the window.
A．look
B．picture
C．view
D．sight
离心泵不上水的原因是（）。
A.泵内混进气体
B.缺油
C.新装盘根过紧
D.压力表不准
