单项选择题

单项选择题 Many people are （） to insect bites, and some even have to go to hospital.

A．insensitive
B．allergic
C．sensible
D．infected

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单项选择题
In the present economic （） we can make even greater progress than previously.

A．air
B．mood
C．area
D．climate
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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