填空题

Every exercise in the book (design)______ to build up your reasoning skills.

【参考答案】

is/was designed
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填空题
What percentage do the poor countries account for in the worldIt’s estimated that _______________________ countries of the world are very poor.
单项选择题
A．To get some money.B．To cash the cheques.C．To get some information about RMＢ．D．To know the exchange rate.
A．To get some money.
B．To cash the cheques.
C．To get some information about RMＢ．
D．To know the exchange rate.
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