单项选择题

单项选择题 As a developing country, we must keep （） with the rapid development of the world economy.

A．move
B．step
C．speed
D．pace

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单项选择题

During the famine, many people were （） to going without food for days.

A．sunk
B．reduced
C．forced
D．declined

单项选择题

The chairman of the company said that new techniques had （） improved their production efficiency.

A．violently
B．severely
C．extremely
D．radically

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