单项选择题

They are seeking to () the most advanced technological levels in the world.

A. obtain
B. gain
C. attain
D. arrive to

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单项选择题
It is very important that enough money () to fund the project.

A. be collected
B. must be collected
C. is collected
D. can be collected
单项选择题
Language is()to human beings.

A. peculiar
B. odd
C. queer
D. strange
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