Withthehelpofhightechnology,mo

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With the help of high technology, more and more new substances ______ in the past years.

A．discovered	B．have discovered
C．had been discovered	D．have been discovered

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I would ________it if you would let me deal with this by myself .

A．appreciate

B．inspect

C．protecct

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A．decreasing

B．empolying

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A．mercy

B．incident

C．attention

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A．basis

B．stage

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According to a study ,little children often feel ________near their parents .

A．magical

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