12.The theory he sticks to to be of no use in our studies . A.proves B.is proved C.proving D.be proved 查看更多

 

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The theory he sticks to ______ to be of no use in our studies.

A.proves

B.prove

C.proving

D.be proved

 

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The theory he sticks to ______ to be of no use in our studies.

A.provesB.prove
C.provingD.be proved

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