问题
选择题
In order to prevent the disease ___________ to other districts, the authorized organization killed thousands and thousands of cows.
A．extending
B．spreading
C．expanding
D．stretching
答案
答案：B
词义辨析。A. 延伸；扩大 B. 传播；伸展 C.扩张；展开 D. 伸展；张开。句意：为了阻止这种疾病传播到其它区域，被授权的阻止杀死了成千上万的牛。故选B。