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1. The ship Titanic had been given the extra name of unsinkable because its ____ was the best there was. A.manufacture B.production C.erection D.construction 2. The US dollar is traditionally the ____ of choice all over the world in case of crisis. A.money B.currency C.bill D.cash 3. The education provides them ____ to economic progress. A.admission B.acceptance C.approach D.access 4. Japan has ____ its steps toward putting into effect an international treaty banning chemical weapons. A.hurried B.bustled C.accelerated D.rushed 5. The motion of ocean water ____ at different depths below the surface. A.varies B.modifies C.alters D.differs 6. Health experts ____ leisurely meals. A.introduce B.recommend C.present D.comment 答案 D B D C A B 1. manufacture 制造，制造业，产品 2.erection 建立，安装 3.construction 建造，结构 4. bustled 忙乱，匆忙 5. varies 改变，多样化 modifies 缓和，修改 differs 相异 | 
