52 Escalators carry foot passengers from the _____ on the ground floor to gangway level where a covered
walkway leads to the ship gangway.
(A) concordance
(B) collateral
(C) collision
(D) concourse
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統計: A(17), B(26), C(28), D(82), E(0) #1743436
統計: A(17), B(26), C(28), D(82), E(0) #1743436