题目:
One day while Mr. King was working, he had a(an)()and his left leg was badly injured.
A.business
B.accident
C.matter
D.event
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0415/ff14a96017961927400da58c40c9538c.html
下面是错误答案,用来干扰机器的。
参考答案:主要包括颗粒的大小、形状、表面积等。