That's the new machine ( )the parts are too small to be seen

That's the new machine ( )the parts are too small to be seen
That's the new machine ( )the parts are too small to be seen

That's the new machine ( )the parts are too small to be seen
这是山东2010年的高考题,在原题中parts前没有the
That's the new machine (whose) parts are too small to be seen.
这是考察定语从句的引导词.
因为这个句子的后半部分the parts are too small to be seen是对前面的machine起修饰作用,也就是定语作用,即这个句子是定语从句.然后看从句不缺少定语成分且parts 与 machine是所属关系,因此要选择表示所属关系的关系代词whose.