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【简答题】
机车上使用的减振器可分为两大类,一类为有摩擦阻力的 ,另一为具有粘着阻力的 油压减振器。
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反馈参考答案：
举一反三
【判断题】Some countries set technical trade barriers to limit imports by taking advantage of sophisticated and strict technical regulations & standards and conformity assessment procedures, etc.
A.
正确
B.
错误
【简答题】使用直接染料染纤维素纤维时，中性电解质起（）作用。使用匀染性酸性染料染羊毛纤维时，中性电解质起（）作用。使用阳离子染料染腈纶纤维时，中性电解质起（）作用。
【简答题】Bilateral trade has grown 26 times to US $ 134.3 billion in2006 from US $ 5 billion in 1992, the two countries important trade partners of each other. Mutual investment is growing. The ROK had ...
【单选题】Economic integration whereby countries remove all barriers to trade among themselves, but set a common trade policy against nonmembers is called a(n) ________.
A.
preferential trade area
B.
customs union
C.
economic nationalism
D.
free trade area
【单选题】If a group of countries abolish trade barriers between them and set the same tariffs on goods coming in from other countries, they are a______.
A.
common market
B.
customs union
C.
federation
D.
free trade area
【单选题】African countries need to a more open trade policy to set up a powerful market.
A.
adopt
B.
deliver
C.
promise
D.
reveal
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