单项选择题

Suppose there were a flood or an earthquake and the people could not be reached by trains or trucks.（）packages of food could be dropped from planes, the people might starve.

A．Until
B．Before
C．Unless
D．If only

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单项选择题

The increase in international business has created a need for managers with skills in cross-culture communication（）

A．国际贸易增加了跨国交流的机会，也提高了经理的技能。
B．国际贸易提高了对经理掌握跨国文化交流技能的要求。
C．国际贸易的增加需要具有跨国文化交流技能的经理。
D．国际贸易增加了对经理文化交际能力的需求。

单项选择题

What is the difference between public interest lawyers and other lawyers（）

A．They have had more highly specialized training.
B．Their training is much cheaper.
C．They may offer help to those who can’t afford to pay.
D．They work long, difficult hours for the money they earn.