Customs and transport authorities should the sales channel of fake notes by carrying on more checks on ports and waterways, it said.A.cut downB.cut upC.cut offD.cut away
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C解析考查短语动词辨析。cut off阻碍或阻断某事物。cut up切碎，剪碎。cut down砍倒，减少某事物的数额，数量。cut away（自某物上）切除，剪去。