阿摩線上測驗
2 ______ is a heavy steel device (of variable design) so shaped as to grip the sea bed to hold a vessel or offshore installation in a desired position.
(A) Tanker
(B) Yatch
(C) Cruiser
(D) Anchor
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統計： A(11), B(5), C(16), D(72), E(0) #3144123
統計： A(11), B(5), C(16), D(72), E(0) #3144123
