阿摩線上測驗
9. When traveling, you are advised to take travelers' checks, which provide a secure _____ to carrying your money in cash.
(A) substitute
(B) selection
(C) preference
(D) alternative
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統計： A(0), B(0), C(0), D(1), E(0) #3443502
統計： A(0), B(0), C(0), D(1), E(0) #3443502
