A-A+
A.Someone spilled water on it.B.Someone lost i
问题详情
A.Someone spilled water on it.
B.Someone lost it.
C.It was made of low quality metal.
D.The standard for measuring had changed.
参考答案
正确答案:C
解析:推理题。对话中出现了poor quality metal这样的词句,而在谈到new standard weight时又用higher quality。显然,old standard weight不是poor quality metal就是not higher quality,两者都可以,因为得出的关于old standard weight的结论都是一样的,即“低质量”。