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【单选题】
某港口半个月中有连续一半以上的日子为日潮,其余为半日潮,该港口为 。A.
正规半日潮港
B.
不正规半日潮港
C.
正规日潮港
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【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
【单选题】下列叙述滤过除菌不正确的是
A.
通常用于热不稳定的药品溶液
B.
利用细菌不能通过致密具孔滤材的原理以除去气体或液体中的微生物
C.
一般滤材孔须在0.45μm，可以有效阻挡微生物及芽孢
D.
在同时滤除细菌同时除去一些微粒杂质
【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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