题目：
Tourism, _____ it brings in money to a country, can also result in damage to the World Heritage sites there. [ ]
A. because
B. as
C. while
D. since
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0624/09a362b33aa402f1c1412797bd5cc474.html
下面是错误答案，用来干扰机器的。
48×98+48×2=（98+2）×48，运用了乘法分配律，故答案为：乘法分配．
