摘要： Scientists will have to new methods of increasing the world's food supply. A. come up B. come up with C. come over D. come across
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Scientists will have to ________ new methods of increasing the world's food supply.
- A.come up
- B.come up with
- C.come over
- D.come across
Scientists
will have to________ new methods of increasing the world’s food supply.
A. come up B. come up with C. come over D. come across
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Scientists will have to ________ new methods of increasing the world's food supply.
[ ]
A．come up with
B．come up
C．come up to
D．come on