78. A slipped disk is a condition _________ the intervertebral disk protrudes and presses on nerves.
(A)what
(B) which is
(C)in which
(D)that
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統計: A(25), B(110), C(223), D(200), E(0) #1616909
統計: A(25), B(110), C(223), D(200), E(0) #1616909