摘要：17．It is widely believed among bioengineers it will be possible to create life under laboratory conditions． A．which B．what C．that D．when
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It is widely believed among bioengineers _____ it will be possible to create life under laboratory conditions．
A．which B．what C．that D．when
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It is widely believed among bioengineers _____ it will be possible to create life under laboratory conditions．
- A.which
- B.what
- C.that
- D.when