6 There would be enquiry to find out how the experienced engineer could make such a ____ mistake like
this.
(A) nude
(B) blunt
(C) patent
(D) random
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統計: A(230), B(397), C(155), D(169), E(0) #603589
統計: A(230), B(397), C(155), D(169), E(0) #603589