Learning how to use the Internet effectively as a marketing tool means that you need to learn two different but related bodies of knowledge（）

A．在对国际市场进行的谈判中，明智的做法是中小型的出口者不要把商谈限制在定价问题上。
B．在进行国际营销的谈判时，中小规模的出口商最好不要把商谈仅限于价格上。
C．在进行国际营销的谈判之际，中小规模的出口商不把商谈局限于价格上是可取的。
D．在国际市场的谈判上，它建议中小型的出口者不要局限他们的讨论于定价问题上。

A．if there are parties in Britain, none of them will be strong enough to have control in the government
B．the more parties there are, the more likely it is that they will have the decisive say in the government
C．the two party system contributes to the establishment of a powerful and long lasting government
D．if there are only two parties in Britain, it will be easy for the government to control them