5. According to the official statistics, since the new law on helmets was ______, the number of people
killed in motorcycle accidents has gone down.
(A) supplemented
(B) complimented
(C) complemented
(D) implemented
詳解 (共 2 筆)
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(A) supplement 補充-to...
未解鎖
根據官方統計數據，自從有關安全帽的新法上...
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