填空题

1（）

【参考答案】

在set与for之间加up。

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单项选择题

Which of the following regions in the world will witness the sharpest drop in life expectancy（）

A．Latin America.
B．Sub-Saharan Africa.
C．Asia.
D．The Caribbean.

单项选择题

The trade dispute between the European Union and the US was caused by（）

A．US refusal to accept arbitration by WTO.
B．US imposing tariffs on European steel.
C．US refusal to pay compensation to EU.
D．US refusal to lower import duties on EU products.