阿摩線上測驗
23. The body is composed of some hundred thousand million cells, ____ is complete in itself.
(A) which
(B) some of which
(C) each of which
(D) of which
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統計： A(5), B(4), C(46), D(5), E(0) #569547
統計： A(5), B(4), C(46), D(5), E(0) #569547
