All the parts of this washing machine are( ),so that it is very convenient to replace them.

问题描述:

All the parts of this washing machine are( ),so that it is very convenient to replace them.
A.normalized
B.modernized
C.mechanized
D.standardized
选什么

选 D standardized
这台洗衣机的所有零件都标准化了,所以要更换它们很方便.