That's the new machine,（）parts are too small to be seen.A.of whom B.of which C.its D.whose

That's the new machine,（）parts are too small to be seen.A.of whom B.of which C.its D.whose
That's the new machine,（）parts are too small to be seen.A.of whom B.of which C.its D.whose

That's the new machine,（）parts are too small to be seen.A.of whom B.of which C.its D.whose
B
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